The Least flycatcher closely resembles the Hammond's flycatcher, but its distinctive voice and choice of habitat help to identify calling birds.

It was formerly an unexpected vagrant west of the Rocky Mountains, but since 1981 it has become recognized as a regular migrant and local summer resident in the state.

It is found in deciduous groves along streams and in wet lowlands. It desires a deciduous overstory with at least some low brushy undergrowth.

It is regular migrant and local summer resident in the state of Oregon with the spring migration from May to mid-June. The majority of sightings are from east of the Cascades especially in Harney County. The fall movement ranges from early August to late September with sightings reported from both eastern and western Oregon.

Hear the song of the Least flycatcher

Photo by Jeff Bryant, Flickr