near Fort Steilacoom, generally met with on oaks, and very much resembling Dendroica auduboni in its habits. Its arrival there he gives as occurring in the first week in April, or a month earlier than stated by Nuttall.
Dr. Cooper met with a pair at Puget Sound that appeared to have a nest, though he sought for it in vain. He describes its note as faint and unvaried.
Dr. Coues met with this Warbler in the vicinity of Fort Whipple, Arizona. He speaks of it as common there as a spring and autumn migrant. He thinks that a few remain to breed. It arrives in that Territory about April 20, and is found until late in September. It is most common among the pine-trees, and in its general habits is stated to resemble the new species D. graciæ.
Dr. Heermann found a few birds of this species near Sacramento, and also on the range of mountains dividing the Calaveras and the Mokelumne Rivers. During the survey by Lieutenant Williamson’s party, Dr. Heermann met with a single specimen among the mountains, near the summit of the Tejon Pass. It was in company with other small birds, migrating southward, and gleaning its food from among the topmost branches of the tallest oaks. He states that its notes closely resemble the sounds of the locust.
Dr. Cooper states that these birds appear at San Diego by the 20th of April, in small flocks migrating northward, and then uttering only a faint chirp. They frequent low bushes along the coast, but as they proceed farther north they take to the deciduous oaks as the leaves begin to expand, early in May, at which time they reach the Columbia River. He has never met with any in California after April.
Mr. Ridgway observed this species only in the pine and cedar woods of the East Humboldt Mountains, where, in all probability, they were breeding. He observed numerous families of young birds following their parents in the months of July and August. He met with them only among the cedars and the woods of the nut-pine, and never among the brushwood of the cañons and ravines. He states that the common note of this bird greatly resembles the sharp chirp of the Dendroica coronata, and is louder and more distinct than that of D. auduboni.
Mr. A. Boucard obtained specimens of these birds at Oaxaca, Mexico, during the winter months.
Dendroica chrysopareia, Scl. & Salv.
YELLOW-CHEEKED WARBLER.
Dendroica chrysopareia, Sclater & Salvin, P. Z. S. 1860, 298.—Ib. Ibis, 1860, 273 (Vera Paz, Guatemala).—Ib. 1865.—Dresser, Ibis, 1865, 477.—Baird, Rev. Am. B. 1864, 183.—Cooper, Orn. Cal. 1, 1870, 93.