Don Edwards San Francisco Bay National Wildlife Refuge
This is a comprehensive field guide to the all known bird species that preside or migrate through this Refuge.
Brown Booby
The Brown Booby (Sula leucogaster) is a large seabird of the booby family, Sulidae. They present sexual dimorphism. The female Booby reaches about 80 centimetres (31 in) in length, its wingspan measures up to 150 cm (4.9 ft), and they can weigh up to 1,300 g (2.9 lb). The male Booby reaches about 75 centimetres (30 in) in length, its wingspan measures up to 140 cm ...more ↓
Double-crested Cormorant
The Double-crested Cormorant (Phalacrocorax auritus) is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico. Measuring 70–90 cm (28–35 in) in length, it is an all-black bird which gains a small double crest of ...more ↓
Pelagic Cormorant
The Pelagic Cormorant (Phalacrocorax pelagicus), also known as Baird's Cormorant, is a small member of the cormorant family Phalacrocoracidae. Analogous to other smallish cormorants, it is also called Pelagic Shag occasionally. This seabird lives along the coasts of the northern Pacific; during winter it can also be found in the open ocean.
Brandt's Cormorant
The Brandt's Cormorant (Phalacrocorax penicillatus) is a strictly marine bird of the cormorant family of seabirds that inhabits the Pacific coast of North America. It ranges, in the summer, from Alaska to the Gulf of California, but the population north of Vancouver Island migrates south during the winter. Its specific name, penicillatus is Latin for a painter's brush ...more ↓
Magnificent Frigatebird
The Magnificent Frigatebird (Fregata magnificens) was sometimes previously known as Man O'War or Man of War, reflecting its rakish lines, speed, and aerial piracy of other birds.
