The blackpoll has a certain characteristic motion that distinguishes him from the black-and-white creeper, for which a hasty glance might mistake him, and from the jolly little chickadee with his black cap. Apparently he runs about the tree-trunk, but in reality he so flits his wings that his feet do not touch the bark at all; yet so rapidly does he go that the flipping wing-motion is not observed. He is most often seen in May in the apple trees, peeping into the opening blossoms for insects, uttering now and then his slender, lisping, brief song.
Vivacious, a busy hunter, often catching insects on the wing like the flycatchers, he is a cheerful, useful neighbor the short time he spends with us before travelling to the far north, where he mates and nests. A nest has been found on Slide Mountain, in the Catskills, but the hardy evergreens of Canada, and sometimes those of northern New England, are the chosen home of this little bird that builds a nest of bits of root, lichens, and sedges, amply large for a family twice the size of his.
_Called also_: VARIED CREEPING WARBLER; BLACK-AND-WHITE CREEPER; WHITEPOLL WARBLER
_Length_--5 to 5.5 inches. About an inch smaller than the English sparrow.
_Male_--Upper parts white, varied with black. A white stripe along the summit of the head and back of the neck, edged with black. White line above and below the eye. Black cheeks and throat, grayish in females and young. Breast white in middle, with black stripes on sides. Wings and tail rusty black, with two white cross-bars on former, and soiled white markings on tail quills.
_Female_--Paler and less distinct markings throughout.
_Range_--Peculiar to America. Eastern United States and westward to the plains. North as far as the fur countries. Winters in tropics south of Florida.
_Migrations_--April. Late September. Summer resident.
Nine times out of ten this active little warbler is mistaken for the downy woodpecker, not because of his coloring alone, but also on account of their common habit of running up and down the trunks of trees and on the under side of branches, looking for insects, on which all the warblers subsist. But presently the true warbler characteristic of restless flitting about shows itself. A woodpecker would go over a tree with painstaking, systematic care, while the black-and-white warbler, no less intent upon securing its food, hurries off from tree to tree, wherever the most promising _menu_ is offered.