The black-and-white warbler is another common warbler in New England. Black-and-white warblers are one of the few warblers often seen on tree trunks. According to the Cornell Lab of Ornithology, they have an extra hind claw that helps them cling to trunks. They are also often heard and not spotted, especially when the leaves are fully out in our New England woods. Listen for the high-pitched squeaky wheel song. Some song descriptions are of little help, but this warbler sounds exactly like a squeaky wheel. The black-and-white warbler is not a colorful warbler (obviously) but it’s a striking bird regardless with its striped plumage.