General

Black-throated Green Warbler: Medium-sized warbler with olive-green upperparts, black-streaked flanks, and white underparts. Face is yellow with black eyestripe. Throat and upper breast are black. Wings are dark with two white bars. Tail is dark. Female is duller with black-mottled yellow throat. Juvenile has less black.

Range and Habitat

Black-throated Green Warbler: Breeds from eastern British Columbia, Ontario, and Newfoundland south to Alberta, Minnesota, Ohio, northern New Jersey, and in the mountains to Georgia. Spends winters from Florida and Texas southward. Preferred habitats include open stands of hemlock or pine.

Listen to Call

Voice Text

"trees-trees--trees", "zay-zay-zoo-zeee"

Interesting Facts

 The male Black-throated Green Warbler sings persistently during the breeding season. One individual was observed singing 466 songs in one hour. 

 Unlike other related wood warbler species, they are not known as a major predator of spruce budworms, except when the insect is at epidemic levels.

 Their population appears to be increasing in the southern parts of their breeding range, but decreasing in the north. This decline comes from the loss of mature forest on wintering grounds. Another reason is aerial spraying to control spruce budworms and other forest pests.

 A group of warblers has many collective nouns, including a "bouquet", "confusion", "fall", and "wrench" of warblers.

Author

Gary Owen Dick