Although one of the most abundant species, common all over the United States, the retiring habits, plainness of dress, and quiet manners of this little bird have caused it to be comparatively little known. Dr. Brewer says that if noticed at all, it is generally confounded with the common Pewee, or Phoebe bird, though a little observation is sufficient to show how very distinct they are. The Wood Pewee will sit almost motionless for many minutes in an erect position, on some dead twig or other prominent perch, patiently watching for its insect prey. While its position is apparently so fixed, however, its eyes are constantly on the alert, and close watching will show that the bird now and then turns its head as its glance follows the course of some distant insect, while anon the feathers of the crown are raised, so as to form a sort of blunt pyramidal crest. This sentinel-like attitude of the Wood Pewee is in marked contrast to the restless motion of the Phoebe, who, even if perched, keeps its tail constantly in motion, while the bird itself seldom remains long in a fixed position. The notes of the two species (see August BIRDS) are as different as their habits, those of the Wood Pewee being peculiarly plaintive--a sort of wailing _pe-e-e-e-i, wee_, the first syllable emphasized and long drawn out, and the tone, a clear, plaintive, wiry whistle, strikingly different from the cheerful, emphatic notes of the true Pewee. The Wood Pewee, like all of its family, is an expert catcher of insects, even the most minute, and has a remarkably quick perception of their near presence, even when the light of day has nearly gone and in the deep gloom of the thick woods. Dr. Brewer describes it as taking its station at the end of a low dead limb, from which it darts out in quest of insects, sometimes for a single individual, which it seizes with a sharp snap of its bill; and, frequently meeting insect after insect, it keeps up a constant snapping sound as it passes on, and finally returns to its post to resume its watch. While watching it occasionally twitters, with a quivering movement of the head and tail, uttering a feeble call-note, sounding like _pee-e_. The nest of the Wood Pewee, which is always "saddled" and securely attached to a rather stout branch, usually lichen-covered, is said to be one of the most elegant examples of bird architecture. From beneath it so much resembles a natural portion of the limb, but for its betrayal by the owner, it would seldom be discovered. It is saucer-shaped, with thick walls, and the whole exterior is a beautiful "mosaic" of green, gray, and glaucous lichen. The eggs are a rich delicate cream color, ornamented by a "wreath" round the larger end of madder-brown, purple, and lilac spots.