Alder Flycatcher: Small flycatcher with olive-brown upperparts, white underparts, and indistinct white eye-ring. Wings are olive-brown with two white or pale bars. Bill is short with orange lower mandible. Sexes are similar.
Range and Habitat
Alder Flycatcher: Breeds from Alaska east through Manitoba to Newfoundland and south to British Columbia, Great Lakes region, much of New England, and into the Mid-Atlantic states. Spends winters in tropics. Preferred habitats include alder and birch thickets near riparian areas, swamps, bogs, and ponds.
Breeding and Nesting
Alder Flycatcher: Three to four brown-spotted, white eggs are laid in a cup-shaped nest made from bark, weeds, stems, and grass and lined with plant down or other soft materials. Nest is built in a shrub or tree 1 to 4 feet above the ground. Incubation ranges from 12 to 14 days and is carried out by the female.
Foraging and Feeding
Alder Flycatcher: Feeds on insects, berries, and a few seeds. Frequently hovers and snatches flying prey from the air; also gleans insects, berries, and seeds from vegetation.
Alder Flycatcher: Song is a descending, buzzing "fee-beer" or a rapid "wee-bee." On the breeding grounds, the song is a hoarse and descending "wheer." Call is a very loud and piping "peep."
Alder Flycatcher: Once considered the same species as Willow Flycatcher, which may have paler eye-ring; however, most individuals are indistinguishable in appearance and are best identified by voice, breeding habitat, or nest. Acadian and Yellow-bellied flycatchers are greener above and more yellow below. Least Flycatcher is grayer above, shorter-tailed, and smaller.