1. The Blackpoll warbler is a fairly large wood warbler

2. The Blackpoll war-bler is a fairly large wood warbler

3. Song has a wood-warbler-like trill, followed by a low throaty warble; delivered in aerial song flight.

4. The wood warbler is 11–12.5 cm long, and a typical leaf warbler in appearance, green above and white below with a lemon-yellow breast.