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 July, 1908 BIRDS OX THE NAVAJO RESERVATION IN NEW MEXICO 151 Geothlypis trichas occidentalis. Western Yellow-throat. Common all thru May. Not seen afterwards. Icteria virens longicauda. Long-tailed Chat. Several pairs spent the season in thickets along the river and their song was a prominent feature among all sounds. Wilsonia pusilia pileolata. Pileolated Warbler. Seen frequently thru month of May. Setophaga ruticilla. American Redstart. A pair seen during a shower, May 27. Artthus pensilvanicus. Pipit. Seen in fields during spring migration. 0roscoptes montanus. Sage Thrasher. Three seen in a patch of Sarcobalus around a sulphur spring out on the plains. An old nest seen. Mimus polyglottos leucopterus. Western Mocking-bird. Numerous in fields and groves near the river. Nests seen in S}rcobalus and other shrubs. Their sing- ing sounded like that heard in California but seemed less frequent. Galeoscoptes carolinensis. Catbird. One came to the school grounds May 7 and stayed around a week or more. Another seen the same week in a willow thicket near the river. Salpinctes obsoletus. Rock Wren. Found everywhere; a welcome sight in a desert land. Thryomanes bewickii leucogaster. Baird Wren. Noted during February and March. In July seen in the mountains. Troglodytes aedon parkmani. Parkman Wren. Several foun d among the pines. Certhia familiaris montana. Rocky Mountain Creeper. Found among spruce trees near the top of the Chusca mountains. A family of grown yonng ones noticed in July. Sitta carolinensis aculeata. Slender-billed Nuthatch. Numerous iu the moun- tains in July. One noticed in the school grounds July 29. Sitta canadensis. Red-breasted Nuthatch. One seen in a cottonwood tree near the river May 11. Sitta pygmea. Pigmy Nuthatch. Numerous from edge of pinyons to the up- per limit of the pines. Parus inornatus griseus. Gray Titmouse. Very numerous all thru thepinyon and juniper zone, and extending a little way into the pines. Families of grown young noticed several times, and these were extremely t'ame. Parus gainbell. Mountain Chickadee. Common in the mountains. A few seen along the river in early spring. Psaltriparus plumbeus. Lead-colored Bushtit. Two seen along the river in February. Numerous among the pinyons and junipers, large family flocks being frequently encountered. Very tame. Regulus calendula. Ruby crowned Kinglet. Common in spring migration. Polioptila cierulea obscura. Western Gnatcatcher. Several pairs noticed. A nest found in a narrow-leafed cottonwood June 16, containing two gnatcatcher's and one cowbird's egg. July 28 a nest containing young nearly grown. Myadestes townsendi. Townsend Solitaire. Several pairs noticed high in the mountains in July. Hylocichla guttara auduboni. Audubon Hermit Thrush. High in the moun- tains in July; apparently breeding, as several pairs were seen. One pair displayed much uneasiness when a spruce thicket was approached, tho no nest could be dis- covered. Probably a nestling concealed somewhere. Hylocichla guttatanana. Dwarf Hermit Thrush. One secured May 12 at Shiprock. Merula migratoria propinqua. Western Robin. One seen March 10. Several