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.
Anna's Hummingbird
Anna's Hummingbird (Calypte anna) is a medium-sized hummingbird native to the west coast of North America. This bird was named after Anna Masséna, Duchess of Rivoli.
Rufous Hummingbird
The Rufous Hummingbird (Selasphorus rufus) is a small hummingbird, about 8 cm long (3 inches) with a long, straight and very slender bill. The female is slightly larger than the male.
Allen's Hummingbird
The Allen's Hummingbird (Selasphorus sasin) is a species of hummingbird. The Allen's Hummingbird is a small bird, with mature adults reaching only 3 to 3½ inches (75 to 90 mm) in length. The male Allen's has a green back and forehead, with rust-colored rufous flanks, rump, and tail. The male's throat is also an iridescent orange-red. The female and immature Allen's Hummingbirds ...more ↓
Black-chinned Hummingbird
The Black-chinned Hummingbird (Archilochus alexandri) is a small hummingbird.
