Audubon in Louisiana
Pine Creeping Wood-warbler

Pine Creeping Wood-warbler [now Pine Warbler]
Sylvicola pinus, Latham [now Setophaga pinus]
Octavo edition, plate 82
“The Pine Creeping Wood-Warbler, the most abundant of its tribe, is met with from Louisiana to Maine; more profusely in the warmer, and more sparingly in the colder regions, breeding wherever fir or pine trees are to be found. . . . Its restless activity is quite surprising: now it gives chase to an insect on wing; now, it is observed spying out those more diminutive species concealed among the blossoms and leaves of the pines. . . . It is seldom that an individual is seen by itself going through its course of action, for a kind of sympathy seems to exist in a flock, and in autumn and winter especially, thirty or more may be observed, if not on the same tree, at least not far from each other.”
John James Audubon, Birds of America (New York: J.J. Audubon; Philadelphia: J. B. Chevalier, 1856), vol. 2, p. 37.
View bird in National Audubon Society Field Guide for North American Birds.