Warblers

Arctic Warbler

Phylloscopus borealis

A small Old World warbler that breeds in Alaska, notable for its distinctive single-wing-bar and buzzy trill song. It is the only Old World warbler that regularly breeds in North America.

Current regional viewing notes

Willow and alder thickets in northern Southeast Alaska; rare but possible in riparian areas near Hoonah during migration.

Dataset note: This legacy field can be specific to Southeast Alaska/Hoonah and is not a complete statewide range statement.

Habitat

Dense willow and alder thickets, typically near treeline or in subarctic scrub.

Diet

Insects and spiders gleaned from foliage.

Natural history note

Arctic Warblers migrate to Southeast Asia for winter, making them one of the few North American breeding birds that winter in the Old World tropics.