Bay-breasted Warbler: Medium-sized warbler with dark-streaked gray upperparts and buff underparts with chestnut-brown patches on the chin, throat, breast and flanks. The head has a dark brown crown and black mask. Wings are black with two white bars. It is one of the largest warblers.
Range and Habitat
Bay-breasted Warbler: Breeds from northeastern British Columbia east to Maritime Provinces and south to the northern Great Lakes region and northern New England. Spends winters in the tropics. Preferred habitats include open spruce forests and deciduous woodlands.
The Bay-breasted Warbler is closely related to the Blackpoll Warbler, and hybrids between the two species are known. They are also known to hybridize with Yellow-rumped and Blackburnian warblers.
Eighty-two percent of the global population of Bay-breasted Warbler nests in the boreal forest of North America.
In contrast to the more stable populations of other warblers, their numbers go up and down depending on outbreaks of the spruce budworm. They are abundant during infestations, but decline or even disappear from some areas a few years later.
A group of warblers has many collective nouns, including a "bouquet", "confusion", "fall", and "wrench" of warblers.
The Bay-breasted Warbler has a range of approximately 2.5 million square kilometers. Currently, it is estimated that there is a population of around 3 million individuals . They can be found in numerous countries around the world, particularly in the Caribbean, North America and Central America. It has also been spotted in the United Kingdom and Greenland. The population of this bird has not decreased in the last ten years. Consequently, the Bay-breasted Warbler has a rating of Least Concern.