Anna's hummingbird is the largest hummingbird common to our region. It is the only hummingbird regularly found in Oregon in winter, during which time it is exposed to short day lengths, limited sources of food and periods of intense cold.
It is more vocal than most hummingbirds with males uttering a dry, scratchy buzz of a song that can be heard throughout the year.
It is a rare to locally uncommon summer resident west of the Cascades in interior valleys and along the coast; also along the Columbia River east to The Dalles. It occurs and probably breeds into the west Cascades at some urban developments such as Oakridge. In winter, it is uncommon to fairly common in western Oregon at lower elevations, especially where feeders are present. It is a casual winter visitor in the south Cascades.