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.
Osprey
The Osprey (Pandion haliaetus), sometimes known as the sea hawk, fish eagle, or fish hawk, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than 60 cm (24 in) in length and 180 cm (71 in) across the wings. It is brown on the upperparts and predominantly greyish on the head and underparts. In 1994, the osprey was declared the ...more ↓
Golden Eagle
The Golden Eagle (Aquila chrysaetos) is one of the best-known birds of prey in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. These birds are dark brown, with lighter golden-brown plumage on their napes. Immature eagles of this species typically have white on the tail and often have white ...more ↓
Cooper's Hawk
Cooper's Hawk (Accipiter cooperii) is a medium-sized hawk native to the North American continent and found from Southern Canada to Northern Mexico. As in many birds of prey, the male is smaller than the female. The birds found east of the Mississippi River tend to be larger on average than the birds found to the west.
Sharp-shinned Hawk
The Sharp-shinned Hawk (Accipiter striatus) is a small hawk. In fact, "sharp-shins" or "sharpies" (as they are sometimes casually called) are the smallest to reside in USA and Canada, though some Neotropical species are smaller (notably the aptly named Tiny Hawk). The taxonomy is far from resolved, with some authorities considering the southern taxa three separate species: ...more ↓
Northern Harrier
The Hen Harrier (Circus cyaneus) or Northern Harrier (in the Americas) is a bird of prey. It breeds throughout the northern parts of the northern hemisphere in Canada and the northernmost USA, and in northern Eurasia. This species is polytypic, with two subspecies. Marsh Hawk is a historical name for the American form.
Rough-legged Hawk
The Rough-legged Buzzard (Buteo lagopus), called the Rough-legged Hawk in North America, is a medium-large bird of prey. It is found in Arctic and Subarctic regions of North America and Eurasia during the breeding season and migrates south for the winter.
Red-shouldered Hawk
The Red-shouldered Hawk (Buteo lineatus) is a medium-sized hawk. Its breeding range spans eastern North America and along the coast of California and northern to northeastern-central Mexico. Red-shouldered Hawks are permanent residents throughout most of their range, though northern birds do migrate, mostly to central Mexico. The main conservation threat to the widespread ...more ↓
Ferruginous Hawk
The Ferruginous Hawk (ferruginous = from Latin ferrum – iron, ferrgin-, iron rust, iron-rust color – reddish-brown), Buteo regalis (Latin, royal hawk), is a large bird of prey and belongs to the broad-winged buteo hawks. An old colloquial name is "Ferrugineous Rough-leg", due to its similarity to the closely related Rough-legged Hawk (B. ...more ↓
White-tailed Kite
The White-tailed Kite (Elanus leucurus) is an elanid kite of genus Elanus found in western North America and parts of South America.
Bald Eagle
The Bald Eagle (Haliaeetus leucocephalus; hali = sea, aeetus = eagle, leuco = white, cephalis = head) is a bird of prey found in North America. A sea eagle, it has two known sub-species and forms a species pair with the White-tailed Eagle (Haliaeetus albicilla). Its range includes most of Canada and Alaska, all of the contiguous United States, ...more ↓
