New migrants this week included NORTHERN ROUGH-WINGED SWALLOWS and numerous CLIFF SWALLOWS on March 29, but not thereafter. An OSPREY was observed March 31. High water forced a SORA into view for photographs on April 1.
Some other migrants that arrived earlier this spring, increased in numbers during the week, especially VIOLET-GREEN SWALLOWS, RUFOUS HUMMINGBIRDS, CINNAMON TEAL, and GREATER YELLOWLEGS.
A PILEATED WOODPECKER was reported during the week, a rare visitor. A drake EURASIAN WIGEON was present March 29 and April 1. It may be the same one reported off and on in the area for several weeks now. A WHITE-THROATED SPARROW put in an appearance at the front feeders on April 2.
Flocks of RIDGWAY’S CACKLING GEESE arrived in large numbers during the week, adding to the TAVERNER’S CACKLING GEESE that wintered, along with the resident WESTERN CANADA GEESE and wintering DUSKY and LESSER CANADA GEESE. If one wants to practice their white-cheeked goose identification, now is the time!
Several different BALD EAGLES were seen, some attacking the resident pair on their nest!
A pair of RED-TAILED HAWKS are nesting in Owl Woods, the grove of Douglas-firs on the southeast side of the Preserve, that also contains several GREAT BLUE HERON nests.
82 species this week.
Cackling Goose
Canada Goose
Tundra Swan
Wood Duck
Gadwall
Eurasian Wigeon
American Wigeon
Mallard
Cinnamon Teal
Northern Shoveler
Northern Pintail
Green-winged Teal
Canvasback
Ring-necked Duck
Lesser Scaup
Bufflehead
Hooded Merganser
Common Merganser
Ruddy Duck
Ring-necked Pheasant
California Quail
Pied-billed Grebe
Double-crested Cormorant
Great Blue Heron
Great Egret
Turkey Vulture
Osprey
Bald Eagle
Northern Harrier
Sharp-shinned Hawk
Red-tailed Hawk
American Kestrel
Sora
American Coot
Killdeer
Greater Yellowlegs
Dunlin
Long-billed Dowitcher
Wilson's Snipe
California Gull
Glaucous-winged Gull
Rock Pigeon
Mourning Dove
Great Horned Owl
Anna's Hummingbird
Rufous Hummingbird
Belted Kingfisher
Downy Woodpecker
Northern Flicker
Pileated Woodpecker
Steller's Jay
Western Scrub-Jay
American Crow
Common Raven
Tree Swallow
Violet-green Swallow
Northern Rough-winged Swallow
Cliff Swallow
Black-capped Chickadee
Bushtit
White-breasted Nuthatch
Brown Creeper
Bewick's Wren
Marsh Wren
Ruby-crowned Kinglet
American Robin
European Starling
Yellow-rumped Warbler
Common Yellowthroat
Spotted Towhee
Savannah Sparrow
Song Sparrow
White-throated Sparrow
White-crowned Sparrow
Golden-crowned Sparrow
Dark-eyed Junco
Red-winged Blackbird
House Finch
Pine Siskin
Lesser Goldfinch
Evening Grosbeak
House Sparrow