Greater Yellowlegs, Jackson Bottom Wetlands Preserve, Hillsboro, Oregon on April 21, 2010 by Greg Gillson.There were heavy migrations this week of YELLOW-RUMPED WARBLERS and CLIFF SWALLOWS, with about 1000 each on April 20.
A PEREGRINE FALCON has been hanging around. A very rare GOLDEN EAGLE flew through on April 17. A MERLIN was reported April 22.
New migrants for the wetlands this week include AMERICAN BITTERN (4/18), BROWN-HEADED COWBIRD (4/19), VAUX'S SWIFT (4/20), WILSON'S WARBLER (4/20), WARBLING VIREO (4/21), an early BULLOCK'S ORIOLE (4/21), and LESSER YELLOWLEGS (4/22).
Dozens of WHITE-CROWNED SPARROWS and GOLDEN-CROWNED SPARROWS migrated through this week. Several LINCOLN'S SPARROWS were also noted. A WHITE-THROATED SPARROW, perhaps the same one noted for a couple of weeks in the front of the building, also put in an appearance at the back feeders this week.
Shorebird numbers increased this week. A flock of about 25 GREATER YELLOWLEGS was noisily flying about the wetlands on April 22. DUNLIN were molting into their breeding plumage with black belly patches and a few rusty feathers on the back. Within a few weeks they will live up to their former name, Red-backed Sandpiper.
Jackson Bottom Wetlands Preserve is located at 2600 SW Hillsboro Hwy, Hillsboro, Oregon.
Here is the list of 82 species reported for the week of April 17-22, 2010.
Cackling Goose
Canada Goose
Wood Duck
Gadwall
American Wigeon
Mallard
Cinnamon Teal
Northern Shoveler
Northern Pintail
Green-winged Teal
Ring-necked Duck
Lesser Scaup
Bufflehead
Hooded Merganser
Ruddy Duck
Ring-necked Pheasant
Double-crested Cormorant
American Bittern
Great Blue Heron
Turkey Vulture
Bald Eagle
Golden Eagle
Northern Harrier
Cooper's Hawk
Red-tailed Hawk
Merlin
Peregrine Falcon
Killdeer
Greater Yellowlegs
Lesser Yellowlegs
Least Sandpiper
Dunlin
Long-billed Dowitcher
Wilson's Snipe
Herring Gull
Glaucous-winged Gull
Rock Pigeon
Mourning Dove
Vaux's Swift
Anna's Hummingbird
Rufous Hummingbird
Belted Kingfisher
Downy Woodpecker
Northern Flicker
Warbling Vireo
Steller's Jay
Western Scrub-Jay
American Crow
Common Raven
Tree Swallow
Violet-green Swallow
Northern Rough-winged Swallow
Cliff Swallow
Barn Swallow
Black-capped Chickadee
Bushtit
White-breasted Nuthatch
Bewick's Wren
Marsh Wren
Ruby-crowned Kinglet
American Robin
European Starling
Orange-crowned Warbler
Yellow-rumped Warbler
Common Yellowthroat
Wilson's Warbler
Spotted Towhee
Savannah Sparrow
Song Sparrow
Lincoln's Sparrow
White-throated Sparrow
White-crowned Sparrow
Golden-crowned Sparrow
Red-winged Blackbird
Brown-headed Cowbird
Bullock's Oriole
House Finch
Pine Siskin
Lesser Goldfinch
American Goldfinch
Evening Grosbeak
House Sparrow