INTRODUCTION 
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Larus cams : Mew Gull. — Very abundant from November into February. 
Larus heermanni : Heermann Gull. —- Abundant on bay in summer, rare in 
winter. 
Larus Philadelphia : Bonaparte Gull. — Common winter visitant. 
Xema sabinii: Sabine Gull. — One taken by Lorquin, October (10 ?). 
Sterna caspia : Caspian Tern. — One taken by Bryant, December 2. 
Sterna maxima : Royal Tern. — One taken at Oakland by Bryant, August 
27. 
Sterna elegans : Elegant Tern. — One taken by Lansing, September 17. 
Sterna forsteri: Forster Tern. — Winter visitant. 
Diomedea albatrus: Short-tailed Albatross. — One taken near Goat Island 
by Bryant, March 10. 
Fulmarus glacialis glupischa: Pacific Fulmar. — Winter visitant. 
Phalacrocorax dilophus cincinatus : White-crested Cormorant. — Occurs in 
winter. 
Phalacrocorax dilophus albociliatus: Farrallone Cormorant. — Common 
resident. 
Phalacrocorax penicillatus: Brandt Cormorant. — Common resident. 
Phalacrocorax pelagicus : Pelagic Cormorant. — Common resident. 
Pelecanus ergthrorhynchos: American White Pelican. — Rather rare win¬ 
ter visitant. 
Pelecanus calif ornicus: California Brown Pelican. — Common winter 
visitant. 
Merganser americanus : American Merganser. — Winter visitant. 
Merganser serrator : Red-breasted Merganser. — Spring and fall migrant. 
Anas boschas : Mallard. — Winter visitant in all marshes bordering bay. 
Mareca americana: Bald pate.—Winter visitant at Vallejo and Oakland. 
Nettion carolinensis : Green-winged Teal. — Common in winter throughout 
the bay region. 
Querquedula discors : Blue-winged Teal. — Taken at Vallejo by Golcher. 
Querquedula cyanoptera : Cinnamon Teal. — Winter visitant at Vallejo. 
Spatula clypeata: Shoveller. —Winter visitant. 
Dafila acuta : Pintail. — Fall and winter visitant at Miller, Marin County, 
and Vallejo. 
Aix sponsa: Wood Duck. — Taken by Slevin at Cordelia, November 8. 
Ay thy a vallisneria : Canvas-back. — Abundant winter visitant at Vallejo. 
Aythya marila : Scaup Duck. — Winter visitant to all parts of bay. 
Aythya affinis : Lesser Scaup Duck. — Winter visitant at Vallejo and Oak¬ 
land. 
Aythya collaris : Ring-necked Duck. — Two taken by Hornung, February 5. 
Clangula clangula americana: American Golden-eye. — Fall and winter 
visitant. 
Clangula islandica: Barrow Golden-eye. — Two taken by Bryant, Novem¬ 
ber 16 and December 3. 
Charitonetta albeola : Buffle-liead. — Winter visitant. 
Oidemia perspicillata: Surf Scoter. —Common winter visitant. 
Oidemia deglandi: White-winged Scoter. — Common winter visitant. 
Erismatura jamaicensis: Ruddy Duck. —Found in lagoons from October 
until the middle of February. 
All California 'geese occur in greater or less abundance in the inner 
portions of the bay. 
Olor columbianus : Whistling Swan. — One taken by Kellogg at Cordelia, 
December 18. 
Botaurus lentiginosus : American Bittern. — One taken by Bryant and one 
by Hornung. I have found it fairly common in the marshes. 
Ardea herodias : Great Blue Heron. — Breeds at Alameda; resident. 
