What to expect…

Transcription

What to expect…
Pacific Flyway Shorebird Survey
What to expect…
• 12 species of shorebirds detected
SHOR; 0%
BBPL; 2%
WISN; 1%
SEPL; 0%
BNST; 0%
KILL; 19%
XDOW; 23%
AMAV; 0%
GRYE; 7%
DUNL; 30%
LESA; 15%
LBCU; 3%
BBPL
SEPL
KILL
BNST
AMAV
GRYE
LBCU
LESA
DUNL
XDOW
WISN
SHOR
Pacific Flyway Shorebird Survey
Shorebird Identification
Pacific Flyway Shorebird Survey
Field Guides
Shorebirds of North America:
The Photographic Guide
by Dennis Paulson
The Sibley Field Guide to the Birds
of Western North America
by David Allen Sibley
The Shorebird Guide
by Michael O’Brien,
Richard Crossley,
Kevin Karlson
Pacific Flyway Shorebird Survey
Shorebird Topography
Tail
Bill
Tail
Supercilium
Belly
Legs
© Davis Allen Sibley
Breast
Pacific Flyway Shorebird Survey
Shorebird Silhouettes
curlews
yellowlegs
avocets
killdeer
plovers
dunlin
dowitchers
peeps
Pacific Flyway Shorebird Survey
0.1%
Stilts and Avocets
Black-necked Stilt
(Himantopus mexicanus)
American Avocet
(Recurvirostra americana)
© Gypsy Flores
Pacific Flyway Shorebird Survey
Plovers
Killdeer
(Charadrius vociferus)
Black-bellied Plover
(Pluvialis squatarola)
Semipalmated Plover
(Charadrius semipalmatus)
Pacific Flyway Shorebird Survey
19%
Killdeer
Size: Medium; L: 11”
Bill: Short, thick dark
Legs: Flesh colored
Appearance:
− Upperparts brown
© Ingrid Taylor
− Underparts white
− Two black breast bands
− Red eye ring
− Voice
Stuart McKay
Pacific Flyway Shorebird Survey
0.1%
Semipalmated Plover
Size: Small; L: 8”
Bill: Short, thin with hints bi-color
Legs: orange-ish legs
Appearance:
− Upperparts brownish-grey
− Underparts white
© Arthur Morris/BIRDS AS ART
− Single dark neckband
Brad Bergstrom
Pacific Flyway Shorebird Survey
Killdeer vs. Semipalmated Plover
Killdeer
Semipalmated Plover
*larger
*smaller
*two black breast bands
*single dark neckband
*elongated
*plumper
*shorter bill
Pacific Flyway Shorebird Survey
2.4%
Black-bellied Plover
www.inwater.org
Size: Medium, plump, L: 12”
Bill: Short, thick, dark
Legs: Black
Appearance:
− Gray upperparts with pale edging
− White underparts
− Black axillaries visible in flight
− White wing stripe
− White rump
© Stephen J. Davies
Voice: slow “peeooEEE”
Pacific Flyway Shorebird Survey
Large Shorebirds
Whimbrel
(Numenius phaeopus)
Long-billed Curlew
(Numenius americanus)
Pacific Flyway Shorebird Survey
3%
Long-billed Curlew
Size: Largest North American shorebird; L: 23”
Bill: Very long and decurved
Legs: Gray
Appearance:
− Mottled brown upperparts
− Cinnamon underparts
©Arthur Morris/BirdsAsArt
− Long neck, small head
− Cinnamon underwing
Tom Grey
Pacific Flyway Shorebird Survey
0%
Whimbrel
Whimbrel © T.Douglas Rodda
Size: Large, L: 18”
Bill: Long and decurved
Legs: Dark and short
Appearance:
− Brown upperparts with light and dark
spotting
− Head striped brown and white
− Brown streaked neck and breast
− White belly
Pacific Flyway Shorebird Survey
Long-billed Curlew vs. Whimbrel
Long-billed Curlew
Whimbrel
*larger
*smaller
*longer bill – 3 head lengths
*shorter bill -2 head legnths
*lighter legs
*darker legs
*boldly striped head
Pacific Flyway Shorebird Survey
Medium Shorebirds
http://www.westpascoaudubon.com
Lesser Yellowlegs
(Tringa flavipes)
Dowitchers (Limnodromus spp.)
©Jack Binch
Greater Yellowlegs
(Tringa melanoleuca)
© Phil Jeffery
Wilson’s Phalarope
(Phalaropus tricolor)
Wilson’s
Snipe (Gallinago delicata)
© Rajiv Lather
Pacific Flyway Shorebird Survey
7%
Greater Yellowlegs
Size: Medium, L: 14”
Bill: Slightly upturned, long bill
Legs: Bright yellow
Appearance:
Underparts white with gray-brown streaks
Upperparts dark brown with pale flecks
Voice: “tew, tew, tew”
Pacific Flyway Shorebird Survey
Lesser Yellowlegs
Size: Medium, L: 10.5”
Bill: Straight, medium bill
Legs: Bright yellow
Appearance:
Underparts white with gray-brown streak
Upperparts dark brown with pale flecks
“Dainty”
Voice: “too-too”
Pacific Flyway Shorebird Survey
Greater vs. Lesser Yellowlegs
http://www.westpascoaudubon.com
Greater Yellowlegs
Lesser Yellowlegs
*larger
*smaller
*longer, upturned bill
*shorter, straighter bill
* “tew, tew, tew”
* “too, too”
Pacific Flyway Shorebird Survey
0%
Wilson’s Phalarope
Size: Medium-small, L: 9”
Bill: Long, slender and dark
Legs: Yellowish
Appearance:
− Gray upperparts
− White underparts
− White rump, pale gray tail
− Wings dark, unstriped
Often feeds by spinning in deep water
© Phil Jeffery
Pacific Flyway Shorebird Survey
23%
Dowitchers
Size: Medium, L: 11”
Bill: Long, straight
Legs: Dull, yellowish
Appearance:
− Upperparts gray
− Breast pale gray with faint spotting; belly
white
− White wedge on back in flight
− Tail barred black and white
©Jack Binch
Feeds with sewing machine motion
© 2010 WildDelaware
Pacific Flyway Shorebird Survey
1%
Wilson’s Snipe
Size: Medium, L: 11”
Bill: Long, slender and dark
Legs: Yellowish
Appearance:
− Dark upperparts with bold stripes
on back
− Dark rump, orange tail
− White belly
Very camouflage: often seen or heard
flying away
© Rajiv Lather
Pacific Flyway Shorebird Survey
Wilson’s Snipe vs. Dowitchers
© Terry Sohl
© Mark A. Chappel
Wilson’s Snipe
Dowitcher spp.
*bold stripes on back
*dark upperparts with no
striping
*prefers vegetated areas
*feeds with sewing machine
motion
Pacific Flyway Shorebird Survey
Small Sandpipers
Western Sandpiper (Calidris mauri)
Dunlin (Calidris alpina)
Spotted Sandpiper (Actitis macularia)
Least Sandpiper (Calidris minutilla)
© Arthur Morris/BIRDS AS ART
Pacific Flyway Shorebird Survey
0%
Western Sandpiper
Size: Small, L: 7”
Bill: Short, thin, and dark
Thinner at tip than at base
Slightly drooping
Legs: Dark
Appearance:
− Grayish upperparts
− White underparts
− Faint, partial gray breast band
− Indistinct white supercilium, gray crown and
cheeks
− Rufous scapulars in juveniles
www.southwestbirders.com
Pacific Flyway Shorebird Survey
15%
Least Sandpiper
Size: World’s smallest shorebird, L: 6”
Bill: Short, thin, and dark; slightly decurved
Legs: Yellowish legs
Apperance:
− Brownish-gray upperparts
− White underparts
− Gray-brown breast band
www.giffbeaton.com
− Indistinct white supercilium with darker crown
and eyeline
Pacific Flyway Shorebird Survey
Western Sandpiper vs. Least Sandpiper
© Joseph Kennedy
Western Sandpiper
Least Sandpiper
Which are these?
•
The two common small shorebirds called "peeps" in most of the West.
•
Western Sandpiper has black legs, longer bill, droops slightly at tip. In winter, gray or
gray-brown; perhaps the palest "peep.“
•
Least Sandpiper has yellowish legs (unless stained by mud), has a shorter bill and is
browner.
Pacific Flyway Shorebird Survey
30%
Dunlin
Size: Small, L: 9”
Bill: Medium, thin, dark, drooping
Legs: Black legs
© Kjetil Schjølberg
Appearance:
− Gray upperparts
− Pale indistinct supercilium
− Faintly spotted gray breast
− White belly
− Black patch on rump extending onto tail
Pacific Flyway Shorebird Survey
Dunlin vs. “peeps”
© Larry Thompson, 2007-2010
Dunlin
Western and Least
• Dunlin: Larger and darker gray than peeps with a more obvious wing stripe. Drooping bill
longer than peeps.
• Western Sandpiper: Smaller overall with lighter gray upperparts. Drooping bill is shorter
• Least Sandpiper: Smaller overall with browner upperparts. Yellowish legs and a shorter bill.
Pacific Flyway Shorebird Survey
0%
Spotted Sandpiper
Size: Small, 8”
Bill: Medium and straight
Legs: Short and light colored
Appearance:
− Plain brown upperparts
− White underparts (non-breeding)
© Arthur Morris/BIRDS AS ART
− Brown on sides of breast
− White supercilium
* Usually solitary
* Constantly bobs tail
Pacific Flyway Shorebird Survey
Raptors
Peregrine Falcon
Ferruginous
Hawk
Turkey Vulture
Red-tailed Hawk
Golden Eagle
Cooper’s Hawk
© Birding-Peru.com
© Ryan DiGaudio
American Kestrel
Pacific Flyway Shorebird Survey
Resources
• All About Birds
http://www.birds.cornell.edu/
• What Bird?
http://www.whatbird.com/
• eBird – How to Count Birds
http://ebird.org/content/ebird/news/bird-counting-101