Poecile sclateri
Williams, S.O. 1994. Letter to Bennett Brown summarizing bird survey work in the Animas Mountains. May 13-15, and 28 1994.
Black, C. and J. Black. 1991. Gray Ranch breeding bird surveys June, August, November 1991. Unpubl. field notes for survey done for NMNHP.
West, S. 1990. Fall 1990 report on birds of Gray Ranch. Unpubl. report for the Nature Conservancy (New Mexico Natural Heritage Program) dated 1 Aug. - 30 Nov 1990. 12 p.
Egbert, J. 1980. Observations of wildlife and wildlife habitat in canyon and broadleaf riparian areas of the Animas Mountains. Unpublished manuscript for Steve Dobrott's management plan for the Animas Mountains, Hidalgo County, New Mexico. . 69 p.
Niles, D.M. 1966. Observations on the summer birds of the Animas Mts., New Mexico. New Mex. Ornith. Soc. 2:i-ii & 1-23.
New Mexico Ornithological Society, archived files currently housed at NM Dept Game and Fish.
S70LIGSBNMUS, Legacy reference. Physical copy not yet located.
Bailey, F. 1928. Birds of New Mexico. N.M. Dept. of Game & Fish, Santa Fe, NM. i-xxiv + 1-807
Mongold, R. 429 1/2 #2 Cordova, NW, Albuquerque, NM 87107 (505) 345-9945.
Hayward, B. 1981. Mexican chickadee. New Mexico Ornithological Society field notes. R.A. Goodman (ed) Vol 21(1):10. 1 Dec 81 - 28 Feb 82.