- 4.3–5.1 in
- 7.1–8.7 in
- 0.3–0.5 oz
- Paruline noir et blanc; Fauvette noire et blanche (French)
- Chipe trepador; Reinita trepadora; Verdin trepadora; Mezelilla (Spanish)
- The Black-and-white Warbler has an unusually long hind toe and claw on each foot. This adaptation allows it to move securely on the surface of tree bark.
- Unusually aggressive for a warbler, the Black-and-white Warbler sometimes attacks and fights Red-breasted Nuthatch, Black-capped Chickadee, Tennessee Warbler, and other species.
Breeds in mature and second-growth deciduous and mixed forests. Winters in variety of habitats from disturbed areas to mature forests.
Caterpillars, adult insects, and spiders.
- Clutch Size
- 4–6 eggs
- Egg Description
- White, speckled with brown and light purple.
- Condition at Hatching
- Helpless, pink skin and dark gray down.
Open cup of dry leaves, grass, bark, and pine needles, lined with fine grasses, horsehair, and moss, usually placed on ground next to a tree.
Hops and creeps on tree trunks and branches, picking insects from bark; also gleans from leaves.
Widespread and abundant.
- Kricher, J. C. 1995. Black-and-white Warbler (Mniotilta varia). In The Birds of North America, No. 158 (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia, and The American Ornithologists' Union, Washington, D.C.