Calgary Area Nestbox Monitors` Annual Report 2012
Transcription
Calgary Area Nestbox Monitors` Annual Report 2012
Calgary Area Nest-box Monitors Annual Report 2012 Edited by Bill Taylor ([email protected]) and Don Stiles ([email protected]) Bluebirds Flying Higher It was an excellent year for both target species, Mountain Bluebirds (MOBL) and Trees Swallows (TRES). Although not the most fledglings ever for either species, we should be encouraged by our efforts. There were 58 monitors or monitor teams who checked 4,333 boxes. The number of boxes was down from last year (4,803) due to a number of retirements, and due to illnesses or absences during the monitoring season. This accounted for 610 boxes, whose contents might well have raised our totals to record numbers. Much concern was raised during the summer about vandalized boxes. This affected 71 boxes. A further 93 suffered predation from an unknown source. See the section on Nest Failures. We have reorganized the presentation of monitoring results and trail details to reflect the quadrants we monitor: north or south of the Bow River, and west or east of Highway #2. Contents: Statistical results Monitors, trails, and boxes Individual results by quadrant Fledglings to boxes Nest failures Banding and banders Stories Retirements, monitor changes Significant recoveries Cross-trail recoveries Photo: F. Oosman, Highway 549 west Monitors, Trails, and Boxes page 2 1. North of Bow River and West of Highway 2 Monitors Location # boxes Km trail Km rnd trip Empty boxes Lynda Alderman, V. Smith Darrel Bender Susan Church Don Crane Bob Derbowka Jean Dunn Walt Glanville Diana Halladay Jean Kaiser Bottrel Westbrook to Cochrane Glenbow Ranch Provincial Park NW Dogpound Sundre Loop Beaverdam Creek E of Water Valley North of Sundre 35 m. W of Innisfail Orville Lammle, JD Waddell Hwy 1A; Beaupre Ck Rd; Hwy 940; R60 Johanna McCool P. Mitchell, E Kanagawa D. Nichol, I. Dowdell Isabelle Orr, Susie Spenst Colleen Rittwage Myrna, Jerry Sentes Rudy, Margaret Sieb Gwen Simpson Dick Stauffer Les Stegenga Bill Taylor Ed Tischer Anne, Bryne Weerstra Donna Wieckowski Ray, Agnes Woods Total Dogpound 100 36 28 69 72 62 69 179 10 74 35 63 32 90 16 46 8 12 269 72 4 50 74 33 96 1599 20 34 5 11 52 15 34 200 3 48 11 96 25 25 3 20 13 5 100 62 1 14 16 14 77 904 70 65 ? 107 220 110 168 240 6 80 112 302 130 40 ? 70 22 24 ? 120 180 150 31 136 235 2618 12 9 5 3 3 4 5 8 3 1 1 8 6 9 0 4 0 1 37 8 2 2 6 1 2 140 Photo: Chris Seaver Photo: Marie Donohue Big Hill Springs; Hwy 22: Wstbrk – Water Vly Horse Creek Rd, T280 to T292 West of Airdrie Foxdale Farm Hwy 22 N from Hwy 567 to T 280; T 272 Bearspaw Cochrane N and E SW of Olds NE and NW of Cochrane GD Ranch N of Water Valley Cremona to Water Valley Jamieson Road Hwy766:T284 to T292; T 292 w to R35 E of Elkton Monitors, Trails, and Boxes Page 3 2. South of Bow River and West of Highway #2 Monitors 2012 Location # boxes Km trail Km Rnd Trip Empty boxes Jack, Karen Borno Lyn Brown/Kim Burns Don Conrad Nancy Davis Bob Derbowka Brian Exton Ken, Linda Fry Terry Galvon Matt Ginn Walter, Doreen Gruszecki Jennifer Hilborne Andrew, Mavis Holder Mike, Mary Jane Hunter Marijke, Wim Jalink Vivian Johnson Sue, Kaya Konopnicki Ursula Krol Dianne Leonhardt & Jr. Forest Wardens Susanne Maidment Gary McGonigle Shonna McLeod Jean, Wayne Moore El Peterson, B. Wilson Jill Prendergast Duncan, Nancy Rand Mike Risely D Robertson, C Troy Don, Andrew Stiles Bill Taylor Jane Toews Barry Trakalo, Joan Bruce Mike Truch Total SW T244 W of Hwy22; Ridge Rd N to Hwy1 Hartell Longview to Chain Lakes; W of Nanton Sibbald Creek Trail Country Hills Golf Course Plummers Rd; Priddis Valley Rd. Priddis Store – S and W Turner Valley Jumping Pound W DeWinton Gun Club Millarville Hwy22X E of Priddis; Canmore GC Royalties, Longview, Springbank Millarville W & NW 2 trails Hwy 546 W of Turner Valley Redwood Meadows NE 224 St, 274 Ave - old George Loades trail 192 St, Hwy 22X S to 274 Ave Red Deer Lake to Millarville Church Jumping Pound S, W of Hwy 22, S of T244 Turner Valley Golf Course Leighton Centre Pinebrook, Edenbrook; 101 St; 17 Ave SW Hwy541 W of Longview 48 49 256 80 76 56 93 42 77 40 48 61 95 77 41 33 35 33 78 86 45 77 21 130 25 84 46 59 33 159 12 106 81 2282 12 ? 70 13 ? 17 42 7 15 3 16 24 21 11 14 20 ? 10 22 16 ? 50 6 30 2 60 5 20 24 31 5 27 32 625 158 ? 240 36 ? 77 122 183 ? 75 101 250 240 100 29 65 ? 100 105 100 ? 100 25 225 ? 100 30 40 56 210 24 100 234 3125 2 0 14 7 ? 0 5 0 11 8 0 13 8 10 0 0 0 0 3 0 6 1 2 15 1 21 6 3 2 25 2 4 1 170 Millarville around Priddis and East of Black Diamond S of DeWinton &274 Ave, betw Meridian St & 16 St 338 Ave W of Hwy 22, 256 Street Red Deer Lake DeWinton to Turner Valley; SW Longview NW of Hwy 546 ½ km W of Turner Valley Red Deer Lake to Millarville Race track Meridian Road, Hwy 533 The record for MOBL at 9 years old is one of our Calgary Area birds, 8051-94711 banded by Isabelle Orr as an adult in 1997, and recovered in 2005. Isabelle also recaptured this bird in 2004 as an 8 year old. As a 9 year old her eggs didn’t hatch. Monitors, Trails, and Boxes Page 4 3. North of the Bow River and East of Highway #2 Monitor Location Number of boxes Ted Koziel Rockyford & Redland 38 Ron Reist East of Olds 398 Don, Andrew Stiles East Didsbury 92 Total NE 528 Km of trail 11 200 78 289 Km of Round Trip 220 250 260 730 Empty Boxes 6 55 5 66 Total NW 1599 904 2618 140 Total SW 2206 625 3125 170 Grand Total 4333 1818 6473 376 Fifty-eight monitors or monitor teams cover 62 trails ranging from well south of Longview to Olds. Most of the trails are west of Highway #2. Each “trail” averages 70 boxes and averages about 6 empty boxes or about 8% of the boxes. Ideally we want all boxes to be occupied by our target species. Ones that have been empty for several years should be relocated. Four of the trails have not had their length (from first to last box) reported. Of the rest the average length is 31 km. This would suggest that those average 70 boxes on a trail are placed slightly more than 2 per km. There is plenty of room for more boxes! Nine monitors have not yet reported the round trip they need to cover their trails and return home. So the average round trip for the rest of the monitors is 132 km. When you consider that most monitors will likely visit their trails a minimum of 3 times (and some as often a 8 times), our monitors contribute to the Alberta gasoline distributors to the tune of 19419 km worth of gas. If an average tank fill up is 45 litres…. Well you do the math! Our “hobby” is not inexpensive! We are indeed fortunate to have such a large number of devoted monitors. The over 4,000 boxes we have put in place in the last 20 years have contributed significantly to the growth in population of Mountain Bluebirds and Tree Swallows in the Calgary area. We can all be proud of our contributions. Our work, of course, is supplemented by at least two other organizations in Alberta – the southern group centred in Lethbridge, and a northern group NE of Red Deer. You may wish to check out their websites: Photos: left F. Oosman right: J. Borno Photos 1 page 5 Jack Borno captured this sequence: Two routes had hatchlings with deformed beaks: Left on Bill Taylor’s route, photo by Wendy Cartwright. Right on Diana Halladay`s route. Both fledged. Barry Trakalo encountered cowbird parasitism in this tree swallow nest. The TRES hatchlings did not hatch. Mountain Bluebirds and Tree Swallows Results 2012 NW Quadrant page 6 Attempts, Eggs, Successful nests, Nestlings, Fledglings, Total MOBL – First brood Second (late) brood Monitor Alderman Bender Church Crane Derbowka Dunn Glanville Halladay Kaiser Lammle McCool Mitchell Nichol Orr Rittwage Sentes Sieb Simpson Stauffer Stegenga Taylor Tischer Weerstra Wieckowski Woods A 27 4 1 14 26 22 34 39 3 28 10 11 15 10 3 5 3 2 22 33 1 18 16 8 32 E 148 26 5 60 153 115 163 212 16 159 59 55 55 56 18 31 20 10 119 182 6 97 86 42 182 S 25 4 1 14 26 17 34 39 3 26 9 10 13 9 2 5 3 2 20 33 0 17 15 6 28 N 132 23 5 60 153 86 149 189 15 140 59 48 47 48 11 30 12 10 107 163 0 87 78 30 154 F 122 20 5 60 152 81 146 182 15 136 59 45 39 48 11 30 12 10 103 152 0 83 72 28 145 A 4 0 0 3 2 8 6 7 0 4 0 2 7 0 0 2 2 1 1 2 1 5 3 1 4 E 18 0 0 15 11 39 26 24 0 19 0 9 12 0 0 11 9 5 5 8 5 18 13 4 14 S 4 0 0 3 1 8 5 6 0 4 0 2 6 0 0 2 2 1 1 2 1 5 0 1 3 Total 4 0 4 2 1 7 9 3 7 6 1 9 2 6 1 8 4 0 6 5 2 6 5 5 2 7 1 7 Photo: Chris Seaver Photo: Ron Reist N 18 0 0 14 5 33 26 17 0 19 0 8 9 0 0 9 5 5 5 7 5 17 0 4 11 TRES F 18 0 0 14 5 33 23 17 0 15 0 5 7 0 0 9 5 5 5 7 5 13 0 4 10 T 140 20 5 74 157 114 169 199 15 151 59 50 46 48 11 39 17 15 108 159 5 96 72 32 155 A 58 21 19 49 84 33 36 131 4 48 24 40 18 67 11 36 5 9 130 32 1 28 43 29 62 E 333 114 104 240 489 187 194 801 24 282 122 249 67 416 70 218 28 54 762 180 7 148 234 121 399 S 58 21 17 49 81 29 36 130 4 43 22 37 15 56 10 35 5 9 128 32 1 26 33 13 59 N 303 103 88 216 458 153 191 702 24 226 122 209 29 323 63 213 25 54 754 179 7 131 203 84 390 F 292 94 80 205 437 151 188 654 24 202 122 199 26 308 63 207 0 54 748 176 7 125 164 64 359 2 0 0 2 0 4 0 1 0 0 4 5 7 6 8 9 3 6 5 1 7 5 4 8 9 2 Mountain Bluebirds and Tree Swallows 2012 Results SW Quadrant Page 7 Attempts*, Eggs, Successful nests*, Nestlings, Fledglings, Total MOBL – First brood Second (late) brood TRES Monitor A E S N F A E S N F T A E S N F Borno Brown.Burns Conrad Davis Exton Fry Galvon Ginn Gruszecki Hilborne Holder Hunter Jalink Johnson Konopnicki Krol Leonhardt Jr.For. Wdns Maidment McGonigle McLeod Moore Peterson Prendergast Rand Risely Robertson Stiles Taylor Toews Trakalo Truch Total SW 12 14 82 18 25 27 10 37 2 18 14 33 25 19 10 24 14 12 32 0 52 4 60 5 22 6 38 8 26 1 33 33 7 1 5 69 80 498 102 132 131 48 207 6 106 82 193 142 85 60 72 77 69 170 0 169 23 355 31 95 33 205 45 143 4 185 190 3 8 1 8 10 12 67 14 24 20 9 27 1 17 13 26 18 18 10 22 14 12 30 0 29 3 60 5 18 5 36 7 22 1 27 32 6 1 1 54 74 399 68 110 118 42 147 5 91 72 167 120 82 51 72 77 68 147 0 154 18 339 28 87 28 177 39 121 4 142 173 3 2 9 1 48 68 371 61 98 105 42 141 5 76 68 153 98 80 51 72 77 68 138 0 147 17 339 28 87 26 175 34 121 4 142 164 3 1 1 6 5 2 21 2 7 7 2 7 0 3 7 7 4 0 4 7 1 1 6 0 7 1 8 0 1 0 8 2 10 0 4 3 1 3 6 26 7 92 11 28 32 11 31 0 14 31 32 19 0 23 21 4 4 29 0 41 4 32 0 5 0 38 10 44 0 17 13 6 1 3 3 2 16 2 7 7 2 7 0 3 7 4 4 0 4 6 0 1 5 0 7 1 7 0 1 0 5 2 8 0 2 2 1 3 4 15 7 58 11 20 29 9 27 0 10 24 23 16 0 20 21 0 4 22 0 34 3 26 0 5 0 19 7 35 0 8 6 4 5 4 13 7 49 11 19 29 8 26 0 10 22 9 16 0 20 21 0 4 21 0 34 3 26 0 5 0 18 7 35 0 8 6 4 2 2 61 75 420 72 117 134 50 167 5 86 90 162 114 80 71 93 77 72 159 0 181 20 365 28 92 26 193 41 156 4 150 170 3 5 3 8 40 29 150 53 37 70 32 38 28 38 31 53 41 25 29 6 23 63 54 33 54 13 67 19 34 19 29 22 100 9 79 60 1 4 4 7 229 141 817 275 214 403 194 225 146 187 181 325 244 187 150 30 128 367 313 151 291 75 362 122 187 66 141 126 550 37 433 342 8 0 2 5 37 28 138 47 37 62 32 35 26 28 29 47 34 23 25 6 18 55 53 30 48 8 63 19 34 16 27 20 81 7 70 55 1 2 9 7 223 138 741 270 176 329 170 203 138 140 150 278 217 187 143 30 99 326 274 134 225 51 319 118 173 60 132 103 439 25 365 293 7 0 2 0 206 136 693 260 157 297 158 195 132 129 140 252 174 177 137 27 94 288 233 131 211 49 311 118 173 54 129 97 400 25 357 283 6 5 1 6 *A nest ATTEMPT means at least one egg has been laid. A SUCCESSFUL nest means at least one nestling fledged. Mountain Bluebirds and Tree Swallows Results 2012 NE Quadrant and Grand Totals Page 8 Attempts, Eggs, Successful nests, Nestlings, Fledglings, Total MOBL – First brood Second (late) brood TRES Monitor A E S N F A E S N F T A E S N F Koziel Reist Stiles 0 88 21 0 487 116 0 72 21 0 367 108 0 354 106 0 30 8 0 145 41 0 23 8 0 98 34 0 97 34 0 451 140 29 273 73 190 1737 452 28 260 68 161 1457 377 154 1439 375 Total NE 109 603 93 475 460 38 186 31 132 131 591 375 2379 356 1995 1968 Total NW 404 2179 376 1926 1840 65 265 57 217 200 2040 1004 5768 936 5175 4892 Total SW 715 3818 611 3291 3116 136 613 134 454 422 3538 1447 8025 1297 7020 6616 Total 2012 1228 6600 1080 5692 5416 239 1064 222 803 753 6169 2826 16172 2589 14190 13376 Total 2011 1112 6012 984 5184 4792 96 391 68 292 261 5053 2951 16958 2686 14930 13911 Analyzing the above we have: Successful nests per Attempt Eggs per attempt (=average clutch size) Nestlings per eggs Fledglings per nestlings MOBL – 1st brood 0.879 MOBL – 2nd brood 0.929 TRES 0.916 5.375 4.452 5.723 0.862 0.952 0.755 0.938 0.877 0.943 The second (or late) MOBL clutches are about 1 egg smaller than the first clutch (4.6 against 5.4), but the first broods have better success in hatching nestlings (86% against 76%). TRES clutches are larger than MOBL clutches. MOBL first broods have the best results in fledging the nestlings (95% against 94 % for TRES and second brood MOBL.) Terrific number of second brood MOBL this year! Our total of MOBL fledglings was about 22 % higher than last year. It was a very good year for MOBL, ranking 2012 as the 6th best year for MOBL. We hope it is the start of an upward trend. Although TRES fledglings were less than 2011, it was still the 4th best year ever: Mountain Bluebirds 2006 2004 2005 2007 1999 2012 8405 fledglings 7340 6733 6295 6263 6169 Tree Swallows 2011 2009 2007 2012 13,911 fledglings 13,518 13,421 13,376 Photo: Pat Sullivan Fledglings to Boxes Page 9 The following chart and table provide numbers of boxes, and fledglings for both target species. The ratio (Fledglings to Boxes) is one measure of our success that we have used since we began keeping records. (It could be misleading as the ratios do NOT indicate the actual sizes of the average clutches. See page 8 for clutch sizes.) Ratio Fledglings to Boxes 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 Series1 Series2 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 Year Fledglings to Boxes Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Swallows 3772 4728 5182 6568 6963 8036 6932 2616 7368 6988 7568 9052 8636 9307 11266 13421 12716 13518 10680 13911 13376 Ratios Bluebirds 5433 5217 4168 4813 3988 3778 5250 6263 5632 4650 5370 5005 7340 6733 8405 6295 5522 5207 5354 5053 6169 Boxes 2347 2601 2427 2783 2721 2942 2620 3247 3113 3070 3681 3570 3916 4016 4193 4585 4323 4539 4734 4803 4333 Year 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Swallows 1.61 1.82 2.14 2.36 2.56 2.73 2.65 0.81 2.37 2.28 2.06 2.54 2.21 2.32 2.69 2.93 2.94 2.98 2.26 2.90 3.09 Bluebirds 2.31 2.01 1.72 1.73 1.47 1.28 2.00 1.93 1.81 1.51 1.46 1.40 1.87 1.68 2.00 1.37 1.28 1.15 1.13 1.05 1.42 New Monitor Retiring Monitor Trail Location Page 10 Ursula Krol Cyndi Jacob Priddis/Millarville area Jane Toews ) George and Charlotte Clark Susan Feil ) NW of Turner Valley Susan Church ) New trail at Glenbow Ranch Provincial Park Heather Simonds ) Margaret and Rudy Sieb - have reinstated their trail at Bearspaw after one year of not monitoring Retiring Monitors Ray Harris – Ray has been a very active monitor since 1982, first with the Lethbridge group and since 2007 with our group. For a few years, he was president of the North American Bluebird Society. He monitored 136 nestboxes on three trails north of Pincher Creek, one along Beaver Creek where his residence is, one along Heath Creek and one at Maycroft along the Old Man River. Ray Hummel – Ray’s trail was in the Drumheller area, mostly along roads on both sides of the Red Deer River northwest from his residence in East Coulee. He began monitoring in 1989 and most years from 1992 to 2009 he had around 200 nest-boxes. Rescue Effort When Isabelle (Isy) Orr and Susie Spenst opened a bluebird nest they found a female bluebird that they couldn’t lift off the nest to check for a band as usual. They found that the female was stuck in the nest with baling twine wrapped around one of her feet. They were able to cut the twine loose from the bird and then band her. They were surprised how calm she was. She flew to the next fence post and watched them. The nest included a piece of plastic, thistle leaves and the baling twine as well as grass. As there was poop on the eggs, she must have been trapped in the nest for a number of days, and the male must have been feeding her. They cleaned off the eggs the best they could and replaced the nest with a last year’s nest they had in their car. There were 5 eggs to start with. Three of them hatched and then fledged OK, so Isy and Susie’s rescue effort worked! Banders 2012 Mountain Bluebirds Page 11 Tree Swallows Monitor Young Adults Total Young Adults Total Borno 48 3 51 0 0 0 Conrad 437 31 468 430 0 430 Davis 72 5 77 0 0 0 Exton 0 0 0 89 1 90 Ginn 28 15 43 7 3 10 Glanville 112 0 112 0 0 0 Holder 33 9 42 54 15 69 Hunter 158 13 171 178 22 200 Jalink 121 5 126 197 12 209 Konopnicki 0 1 1 39 4 43 Krol 0 6 6 0 5 5 Maidment 168 7 175 84 12 96 McLeod 181 23 204 211 60 271 Mitchell 21 2 23 72 21 93 Orr 48 5 53 153 22 175 Prendergast 0 1 1 0 0 0 Rand 73 0 73 0 0 0 Rathburn* 234 48 282 0 0 0 Reist 425 33 458 543 126 669 Risely 0 0 0 28 0 28 Stauffer 91 9 100 209 39 248 Stegenga 121 0 121 0 0 0 Stiles 108 11 119 255 48 303 Taylor 160 12 172 387 35 422 Trakalo 140 3 143 72 27 99 Truch 169 5 174 287 41 328 Weerstra 0 2 2 0 22 22 Wieckowski 10 0 10 0 2 2 Woods 135 22 157 0 27 27 Total 3096 270 3366 3295 544 3839 Includes 1 EABL adult Twenty-nine of our monitors also band their own birds. One of the great pleasures of doing so is recapturing a previously banded bird. Often birds will return to the area where they were first banded, but they do “wander” from time to time. That they can return so close – often to the same box – is good testimony to the miracle of migration. Using visual clues by day, star patterns by night, and the earth’s magnetic field as well (they have minute amounts of magnetite in their heads) they can retrace a southward migration to the north in the spring. To become a bander speak to Bill or Don. Occasionally we capture an Eastern or Western Bluebird, although they are not normally found in our area. Melanie Rathburn (doing a long term scientific study) banded an EABL this year. Banding Recovery Highlights 2012 Page 12 MOBL recoveries were up slightly at 197 compared to last year’s 186, and TRES recoveries were up at 236 from last year’s 217. Our main contributor for recoveries is Ron Reist, who monitors 412 nestboxes east of Olds. He recovered 50 MOBL (18 banded as adults, 32 as young) and 108 TRES (106 banded as adults and only 2 as young). See Table 1 – Summary of 2012 Recoveries for distance moved, whether banded as an adult or young, and age distribution. The term recovery is a generic term which describes when a bird with a band is found, whether alive or dead. Almost all of the birds mentioned will have been recaptured alive and released. Long Distance Bluebird Recoveries 8 long distance MOBL recoveries in 2012 are listed below. 4 were banded as young in 2011, 2 in 2010 and 1 in 2008; and 1 as an adult in 2011. Details follow: 2261-76529 was banded as a young in 2008 by Don Conrad S of Longview on Hwy 532 W of Hwy 22 and recovered by Dick Stauffer W of Olds – moved 162 km (100 mi) N. 2231-83514 was banded as young in 2010 by Ray Harris north of Pincher Creek and recovered by Barry Trakalo NE of Millarville – moved about 136 km (84 mi) NNW. 2431-96557 was banded as a young in 2011 by Nancy Rand SE of Black Diamond and recovered by Gwen Tietz S of the Shell Pincher Creek Gas Plant – moved about 125 km (78 mi) S. 2261-75572 was banded as a young in 2010 by Ray Woods in the Elkton area W of Didsbury and recovered by Shonna McLeod near Leighton Centre SW of Calgary – moved 96 km (60 mi) S. 2541-75704 was banded as a young in 2011 by Mary Jane Hunter in the Springbank area and recovered by Ron Reist east of Olds – moved 89 km (55 mi) NNE. 2431-91991 was banded as an adult female in 2011 by Don Conrad on Hwy 533 SW of Nanton and recovered by Ray Harris N of Pincher Creek, moved about 62 km (38 mi) S. Mary Jane Hunter recovered two MOBL on Hwy 541 W of Longview, both banded as young in 2011, one by Mike Truch SW of Nanton moved about 39 km (24 mi) NNW, and the second by Bill Taylor N of Okotoks moved about 30 km (18 mi) SW. Long Distance Tree Swallow Recoveries 2401-94155 banded as a young in 2011 by Marijke Jalink W of Millarville and recovered by Ron Reist E of Olds – moved 125 km (77 mi) NNE. 2401-94579 banded as a young in 2011 by Dick Stauffer W of Olds and recovered by Bill Taylor SE of Millarville – moved 110 km (68 mi) S. 2321-97408 banded as a young in 2009 by George Loades in the Priddis area and recovered by Dick Stauffer in the Olds area – moved 110 km (68 mi) NNE. MOBL Recovered Again Page 13 Several monitors reported MOBL which had moved significant distances in 2011 or 2010 and then had stayed in the same box or nearby in 2012. Five of those which moved longer distances are reported below. Bob Danner of Edmonton recovered 2291-35638 in 2011 twelve miles SW of Leduc. This bird was banded as a young in 2008 by Ron Reist east of Olds and moved about 145 km (90 mi) N. Bob recovered this bird again in 2012 in an adjacent box, 400 m away. Dick Stauffer recovered 2231-14220 in the Olds area in the same box in 2011 and 2012. It was banded as a young in 2009 in the Ponoka area by Murray Mackay and moved 108 km (67 mi) SSW to Dick’s trail. Melanie Rathburn recovered 2291-35877 in her box K7 in 2010. It was banded by Dick Stauffer of Olds as a young in 2009 and moved 102 km (63 mi) S. Melanie recovered it again in 2012 in the adjacent box K8. Diana Halladay recovered two MOBL in 2012 in the same boxes where she had recovered them in 2011 on her trail NW of Olds. 2261-84743 was banded as a young in 2009 by Shonna McLeod, having moved 127 km (79 mi) N. 2431-96221 was banded as a young in 2010 by Ron Reist, having moved 27.3 km (17 mi) WNW. Oldest Birds MOBL 1791-21984 was banded as a young by Barry Trakalo on June 13, 2004. It moved about 5.6 km NE to Don Stiles trail in 2005, and then in 2006 it moved 3.6 km SW to Shonna McLeod’s trail in her box W2, back towards where it was banded. It was found again in 2012 by Shonna in her adjacent box W1. This makes it 8 years old, a good longevity record. We have only recaptured one 8 year old MOBL previously. TRES 1921-26238 was banded as a young in 2004 by George Loades in the Jumping Pound area. It was found dead in the spring of 2012 by Susanne Maidment while checking boxes. “Due to the condition of the body, it probably died late last fall.” This would suggest it probably died of old age at the age of 7. We don’t have a record of previous recoveries of this bird, or the box number where it was banded, but our records show it was banded in the same area. TRES 1921-27810 was banded as a young in 2005 by Bill Taylor, making it 7 years old. He recaptured it in the same box in 2008, 2010, 2011 and 2012. Birds recovered on adjacent trails Don Conrad and Kirk Davis recovered several of each others MOBLs. Don Conrad’s trail is SW of Nanton, and Kirk Davis’s trail is W of Stavely. Kirk reports his statistics to the Lethbridge group. He took over this trail from Brian Keeling in 2011. Don Conrad recovered 4 MOBL, all banded as young in 2010 by Brian Keeling. These moved distances of from 8 to 12 km, mostly N. Kirk Davis recovered 3 MOBL banded as young (2 in 2011, 1 in 2009) by Don Conrad. These moved distances of from 7 to 15 km, mostly S. Birds banded as adults returned to the same box Page 14 Ray Woods, Anne Weerstra, and Dick Stauffer all recovered three MOBL banded as adults which returned to the same box where they were banded. Years when the birds were banded were RW 2011 – 1, 2010 – 2; AW 2011 – 3; DS 2011 - 1, 2009 – 2. Andrew Holder recaptured three TRES, all banded as adults and all returned to the same box where they were banded, one in 2009, one in 2010 and one in 2011. Two Species in one box Shonna McLeod banded MOBL 1431-73167 and TRES 1911-55787 as adults in 2011 in her box C41 in the Priddis area. In 2012 both birds were also recovered in the same box. The TRES had taken over the nestbox from the MOBL. This happens occasionally on Calgary area trails, but it is believed to be the first time it has happened to the same two birds in the same box in two seasons. Photo Nick Straub Photo: Jack Borno Members of the Public Treva Felzren found TRES 2401-94546 dead in a nestbox near Bentley. It was banded as a young in 2011 by Dick Stauffer SW of Olds. This bird moved about 83 km (51 mi) N. Henk de Jonge found MOBL 2431-96566 dead, caught by cat “in front of barn at home”. It had moved 4.5 km NE from where it was banded as a young in 2011 by Nancy Rand SE of Black Diamond. Tara Conroy found 2261-78875, a male MOBL dead on her deck on April 27, due to a window strike. It was banded as a young in 2010 by Barry Trakalo, and moved about 10 km SSW. Nigel Warren found a dead female MOBL at his acreage at Hwy 773 and 265 Ave on Sept. 15 due to a window strike. It was a young of the year, banded by Barry Trakalo on May 27, 2012, and moved 5.3 km (3.3 mi) NE. Thanks to Don Stiles who keeps track of all bands issued, and all recoveries. Nest Failures Page 15 Predation - unknown Weasel Cat Ants Bears Mice Coyote/Fox or Raccoon Vandalism - human Animal (Cow, Moose, Elk) Weather Abandonment, adults known dead Traffic, Construction, Fence removal Parasites Unknown cause SW Quadrant 70 nests 8 1 4 2 1 5 11 10 54 8 2 16 NW and NE Quadrants 23 nests 1 3 7 36 14 12 15 16 4 12 Photo: Wim Jalink The above does NOT include those cases of House Wrens, House Sparrows, or Tree Swallows who may have taken over a nest before original occupants fledged. (See chart below.) Most of the “unknown predation” consisted of the bottoms pushed up and the contents removed. In past years we have often blamed raccoons for this, but Ray Woods and others have suggested that coyotes may well be the culprits. Those monitors who have screwed in the bottoms have noted that the predation was less than before. Weasels will usually leave the corpses in the box. Cats will usually leave the corpse near the box. We presume that the unknown predator has taken the edible nest contents with him or her, as few monitors have recorded the presence of fledgling remains. Weather was much more significant in the south this year than in the north. However, the north seems to have more losses due to construction or fence removal. Do we need to write to our municipalities to recommend NO such construction during May, June and July? There were 56 House Sparrow nests and 144 House Wren nests – similar to last year. Wren and Sparrow Nests Totals 250 200 150 100 50 0 Wrens Year The Predation/Vandalism Concern Page 16 Donna Wieckowski: The next 11 boxes were tampered with. Either the bottom was removed and the nests and eggs strewn on the ground or the bottoms were tipped up on their side and any nest was tipped up too - if there were eggs in them we found them on the ground. I reset the nests in the boxes that only had them tipped up inside the box so maybe the TRES can reuse them even though all the eggs had fallen out. All the eggs were whole so, to me, that rules out predators. Lyn Brown: Our trail is west of Hartell, which is north of Longview. Yesterday, out of our 49 boxes 13 nest have been tampered with/destroyed in the last 2 weeks. In one case the box had been ripped off the post, but was still intact with (barely alive) babies. Lots of grass trampling both sides of the fence. In a couple others the nests were sideways in the box, one with brand new hatchlings still alive. Don Crane: Today I spent a lot of time visiting farmers, workers and the MD employees along my B.B. route. As reported in mid-June many boxes had been ' vandalized' with the bottoms tipped up. I talked with twelve nearby farm families about the style of box disruption. Not one had seen or found a raccoon in the area, but two thought there was one sighted in Madden and another in Cremona many miles away. Nothing proven. Chicken coops OK. They said that they had never seen human vandalism on their property but some unusual quod tracks, probably made by young fellows, were in ditches. No activity by those was seen near boxes. Jennifer Hilborne: This was is the story I've put together on the destroyed nests. I was out on my trail yesterday which is west and slightly north of Millarville, between Hwy 22 and 256 St. A farmer was out haying and I asked about racoons - he hasn't seen any for about 3 years but he just found a decaying bear in his field. All but one of the nests that were destroyed were around this field. The week before I spoke to another property owner (corner of 224 St. and 302 Ave.) and he claims to have had a cougar trying to get under his deck. There are what looks like long scratch marks and splintered wood. A friend of his living near Priddis, did actually see a cougar coming down her driveway! One last thing, I have seen quad tracks in a ditch but not near the destroyed nests. Marijke Jalink-Wibrans: All farmers along our trail hate raccoons and will try to terminate them. The last three were a question mark, it wasn’t done by a raccoon or coyote or human, we discussed it with owners of the property where we have boxes along their drive way. Well, Diane saw a young Black Bear in her beautiful garden and we knew who was the culprit! These are just a sampling of many observations emailed by monitors. Thank you for all your comments. I wish I could include them all! We have possible human vandalism, possible predation by raccoons, foxes, cougars, bears. The most common suggestion was the coyotes may have learned to push up the bottoms of the boxes. Screwing in the bottoms seems to be very effective: Deb Nichol: I think because we screwed all the bottoms in, so we didn't lose any to predators early this year! Table 1 - Summary of 2012 Recoveries •Distance Moved Mountai n Bluebird s (MOBL) Ron Reist Don Conrad Melanie Rathburn Shonna McLeod Susanne Maidme nt Matt Ginn Mike Truch Dick Stauffer Ray Woods Jack Borno Anne Weerstra Mary Jane Hunter Jennifer Hilborne Marijke Jalink Other Banders Total Banders Cross Trail Members of the Public Total Other Banders: Same >5km Box to or<5km <24k m Page 17 Age at Recapture Banded as >24k m Adul t Youn g Tota l 0 1 2 3 4 2 0 5 1 0 4 4 3 3 1 1 3 1 1 5 4 2 3 1 1 2 43 7 18 32 19 1 14 6 1 3 6 33 2 22 13 5 8 1 5 4 1 4 2 4 2 2 1 1 3 2 2 2 1 3 3 2 4 4 1 1 3 3 1 2 2 2 3 3 1 1 1 2 1 2 1 2 1 1 1 1 1 1 35 1 1 6 6 4 2 3 2 3 2 1 1 1 130 16 90 66 7 18 1 37 5 3 1 6 4 4 3 2 1 3 1 2 3 1 1 6 2 138 36 4 9 6 9 106 1 3 2 1 1 9 3 1 Diana Halladay 2, Isabelle Orr 1, Bill Taylor 1 20 2 3 91 1 3 1 3 9 5 1 13 8 50 2 3 13 7 3 2 2 56 4 4 2 1 156 38 3 4 7 2 4 4 2 1 197 Band Recoveries – Tree Swallows Page 18 Same Tree Swallows (TRES) Ron Reist Dick Stauffer Don Stiles Isabelle Orr Bill Taylor Shonna McLeod Mary Jane Hunter Anne Weerstra Barry Trakalo Marijke Jalink Susanne Maidment Pat Mitchell Andrew Holder Other Banders Total Banders Cross Trail Members of the Public Total Other Banders: •Distance Moved >5km >24km Box or<5km 89 17 15 9 8 6 7 4 5 5 2 3 3 3 176 5 181 Brian Exton 1, Ray Woods 1, Matt Ginn 1, Jennifer Hilborne 1 to <24km 19 1 1 2 1 24 17 41 0 7 1 8 Banded as Adult Young 106 16 14 9 8 7 7 4 4 5 3 3 3 4 193 11 2 2 2 204 1 1 0 1 2 11 19 1 31 Note: For age at recapture, birds banded as adults are assumed to have been one year old when banded. In some cases they will have been older. • Some "Distance Moved" estimated and not all distances calculated. Photos: Jack Borno Bluebird Websites Page 19 Particularly for the Calgary Area – Calgary Area Nestbox Monitors http://canm.canadiannaturenetwork.ca Monitoring a Bluebird Trail Detailed Procedures and What to Expect How to Identify Nests and Their Contents Paired Boxes Annual Reports 2009, 2010 Brief Early History www.bluebirdtrails.org The Lethbridge group who cover the rest of Southern Alberta. They have our CANM 2011 A.R. www.mountainbluebirds.com (Montana) See the link to “Children’s Activity Booklet” by Myrna Pearman. This is a 40 page booklet is a large file which takes some time to open (or may not open?). Page 38 of this booklet has an extensive list of websites except the one mentioned in the paragraph above. Two of these are mentioned below. Also see Trail Mgmt. www.ellisbirdfarm.ab.ca About Bluebirds Attracting Mountain Bluebirds www.nabluebirdsociety.org (North American Bluebird Society) Photos 2: High-flying birds Photos: Jack Borno(above); Marie Donohue (below left) Right: Farook Oosman Below: Walt Gruszecki Page 20