Allen's hummingbirds build tiny nests out of soft plant materials. After a few weeks, the eggs hatch and the chicks emerge.

The male Allen’s hummingbird has warm rusty-orange flanks, breast band, face, neck, and tail, as well as a green back and crown. They often have a rusty-orange rump, and sometimes show rusty ...

While some hummingbirds are residents of California all year, others may only be seen for certain periods of time, if you're ...

The Allen’s hummingbird is a very early migrant among North American birds, leaving its wintering grounds in Mexico in ...

Some Allen’s hummingbirds stay on the coast of Southern California all year, but others migrating further up the coast in California can arrive as early as January, although more typically in ...

Female/immature rufous/Allen’s hummingbirds are slightly smaller and slimmer in build (noticeable in comparison) with more strongly graduated tails that have a more tapered tip. Rufous/Allen’s ...