ARIZONA GRASSHOPPER SPARROW
1991
Black, C. and J. Black. 1991. Gray Ranch breeding bird surveys June, August, November 1991. Unpubl. field notes for survey done for NMNHP.
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1990
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.
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1987
Williams, S.O. 1987. Grasshopper sparrow. New Mexico Ornithological Society field notes, Goodman, R.A. (ed.) Vol. 26, no. 3, June 1 - July 31, 1987. P.39.
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1991
Williams, S.O. III. 1991. Gray Ranch and Hidalgo Co bird notes from 6-9 Aug 1990. Survey Unpubl. notes dated 9 March 1991. 14 pp.
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1988
Jenness, R. 1988. Unpublished letter or unusual bird forms to New Mexico Ornithological Society.
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1990
Castetter, R. 1990. Bird survey of Gray Ranch and Organ mountains. Unpubl. report for New Mexico Natural Heritage Program. 25 p.
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1979
Meents, J.K. 1979. Avian community structure in Chihuahuan desert grasslands. Unpubl. dissertation New Mexico State University. 69pp.
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1990
Williams, S.O. 1990. Cloverdale breeding bird survey. Conducted 87-06-10, 88-06-02, 89-06-18, 90-06-04. 5 pp.
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1987
Hubbard, J.P. 1987. The vegetative communities and vertebrate fauna of the Gray Ranch Hidalgo County, New Mexico. Unpubl. manuscript for Endangered Species Program of New Mexico Dept. of Game and Fish, Santa Fe, NM. 82 pp.
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1991
Black, C. and J. Black. 1991. Field survey to Gray Ranch - Fitzpatricks - site #1 on 20-21 June 1991.
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