BREEDS: n North America, WINTERS: Panama & nw South America
Habitat:
Boreal coniferous forest
Diet:
Mostly insects and spiders, some fruit
TitBit:
Numbers of Bay-breasted Warblers on their North American breeding grounds fluctuate markedly in response to the abundance of their prey, the spruce budworm.
Records and Distribution
First Record:
Cornwall, 1995
(Ferguson, D. 1997. British Birds 90:444-449)
These data should be cited as: Robinson, R.A. (2005) BirdFacts: profiles of birds occurring in Britain & Ireland (v1.24, June 2009). BTO Research Report 407, BTO, Thetford (http://www.bto.org/birdfacts)