Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
s10-35
November 9, 1949, Gray Lodge Refuge, SW Butte Co. 430-5 p.m. RW, 30vc. [illegible]
Waterfowl populations figures estimated by John Cowan as of 11-6-49
1365
Eared Grebe
Pied-billed Grebe
White Pelicans - 60 in one flock
Farallon Cormorants
Blue Heron
Snowy Egrets - 50-75
Black-crowned Night Heron - 450-500
Bittern - 3
Common Canada Goose - 75
Lesser Canada Goose - 350
Cackling Canada Goose - 1800
White-fronted Goose - 3600
Lesser Snow Goose - 4500
Ross Goose - 20
Mallard - 350,000
Gadwall - 7900
Baldpate - 150,000
Pintail - 490,000
Green-winged Teal - 5000
Cinnamon Teal - 800
Shoveller - 6000
Ring-necked Duck - 200
Lesser Scaups - ? 600
Redheads - 150
Bufflehead - 25
Wood Duck - 25
Ruddy Duck - 250
Red-tailed Hawk
Sparrow Hawk
Coots - 7-8,000
Killdeer
Wilson Snipe
Long-billed Dowitchers - 150-200
Pheasants
Mourning Doves
Monterey Red-shafted Flickers
Suisun Long-billed Marsh Wrens
California Shrikes
Western Meadowlarks
Calif. Bicolor Redwings
Brewer Blackbirds
Green-backed Goldfinches
Western Savannah Sparrow
Gambel White-crowned Sparrows
Song Sparrows