Schroeder, R. L. 1990. Tests of a habitat suitability model for black-capped chickadees. U.S. Fish and Wildl. Serv. Biol. Rep. 90(10). 8 pp.

Varela-Romero, A., L. Juarez-Romero and J. Campoy-Favela. 1990 (unpub. draft). Lospeces dulceacuicolas de Sonora. Centro Ecologico de Sonora, A. P. 1495, Hermosillo, Sonora, Mexico.

Bildstein, K. L., and M. W. Collopy. 1990. Northern harrier. Pages 70-7 in B. G. Pendleton (editor). Proc. Southeast raptor management symposium and workshop. National wildlife Federation, Washington, D. C.

Castetter, R. 1990. Bird survey of Gray Ranch and Organ mountains. Unpubl. report for New Mexico Natural Heritage Program. 25 p.

Lightfoot & Muldavin Associates, Environmental Consultants (David Lightfoot and Esteban Muldavin). 1990. Biological clearance survey of the GAM-83 site, White Sands Missile Range, New Mexico. 2 June 1990. 16 pp.

Copeyon, C. K. 1990. A technique for constructing cavities for the the red-cockaded woodpecker. Wildl. Soc. Bull. 18:303-311.

Jones, J. M., and J. H. Whitham. 1990. Post-translocation survival and movement of metropolitan white-tailed deer. Wildl. Soc. Bull. 18:434-441.

Maughn, E. 1990. Arizona Cooperative Fish and Wildlife Research unit. University of Arizona, Tucson, AZ.

Medin, D. E. 1990. Birds of a shadscale (ATRIPLEX CONFERTIFOLIA) habitat in east central Nevada. Great Basin Nat. 50:295-298.

Porter, S.D. and D.A. Savignano. 1990. Invasion of polygyne fire ants decimates native ants and disrupts arthropod community. Ecology 71(6):2095-2106.

Van Daele, L. J., V. G. Barnes, Jr., and R. B. Smith. 1990. Denning characteristics of brown bears on Kodiak Island, Alaska. International Conference on Bear Research and Management 8:257-267.

Collins, J. T. 1990. Standard common and current scientific names for North American amphibians and reptiles. 3rd ed. Society for the Study of Amphibians and Reptiles. Herpetological Circular No. 19. 41 pp.

Kelly, S.K. (1990) Unpublished Letter to Regional Forester Subject: Owl Data Forms and Narrative (1989 and 1990). Silver City Ranger District, Gila National Forest, USFS. 81 p.

Unknown (1990) Final Report for Mexican Spotted Owl Survey, Aldo Leopold Wilderness, Contract Number 53-8399-0-0059. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 22 p.

Churchfield, S. 1990. The natural history of shrews. Cornell University Press, Ithaca, NY. 178 pp.

Castetter, R. 1990. Photographs of location for Phanerophlebia auriculata and Perityle cernua.

Romme, R. 1990. 1990 Bald Eagle Survey, Lincoln National Forest.

DeBruin, E. 1990. Field map for Fillmore Canyon survey, May 1990.

Barker, W. T., et al. 1990. Effects of specialized grazing systems on waterfowl production in southcentral North Dakota. Trans. 55th North American Wildl. & Nat. Res. Conf., pp. 462-474.

DeBruin, E. 1990. Field survey to Organ Mts for Coryphantha organensis. Davies Tank field map, Sept 24, 1990.

Bowling, A. T., and R. W. Touchberry. 1990. Parentage of Great Basin feral horses. J. Wildl. Manage. 54:424-429.

Kerpez, T. A., and N. S. Smith. 1990a. Competition between European starlings and native woodpeckers for nest cavities in saguaros. Auk 107:367-375.

Phillips, J. B. 1990. Lek behaviour in birds: do displaying males reduce nest predation? Animal Behaviour 39:555-565.

Sakai, H. F., and B. R. Noon. 1990. Variation in the foraging behavior of two flycatchers: associations with stage of the breeding cycle. Studies in Avian Biology 13:237-244.

Cibola National Forest. 1990. Mexican Spotted Owl daytime follow-up visit form, survey for Mexican Spotted Owl.

U.S. Department of Agriculture (USDA). 1990. Regional forester's sensitive species list, Coronado National Forest, U.S. Forest Service Southwest Region--Region 3.

Paul, L. (1990) Note to "Bruce," Containing observations of Mexican Spotted Owls. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 20 p.

Bull, E. L., R. S. Holthausen, and M. G. Henju. 1990. Techniques for monitoring pileated woodpeckers. Forest Service General Technical Report. PNW-GRT-269.

Blankenship, E. L., T. W. Bryan, and S. P. Jacobsen. 1990. A method for tracking tortoises using fluorescent powder. Herpetol. Rev. 21:88-89.

Diamond, G. 1990. Morone saxatilis returns! (The rock are back!). Maryland Magazine, Autumn 1990, pp. 53-54.

Hanowski, J. M., and G. J. Niemi. 1990. An approach for quantifying habitat characteristics for rare wetland birds. Pages 51-56 in Mitchell et al., editors. Ecosystem management: rare species and significant habitats. New York State Museum Bulletin 471.

Kilpi, M. 1990. Breeding biology of the herring gull LARUS ARGENTATUS in the northern Baltic. Ornis Fennica 67:130-140.

Pierce, B.A. and Whitehurst, P.H. 1990. Pseudacris clarkii. Catalogue of American Amphibians and Reptiles. 458:1-3.

Szaro, R.C. Southwestern Riparian Plant Communities: site characteristics, tree species distributions, and size-class structures. For. Ecol. Manage. 33/34:315-334.

Bock, C. E., H. M. Smith, and J. H. Bock. 1990. The effect of livestock grazing upon abundance of the lizard, Sceloporus scalaris, in southeastern Arizona. J. Herpetol. 24:445-446.

Dickerman, R. W. 1990. Geographic variation in the juvenal plumage of the common nighthawk (CHORDEILES MINOR) in North America. Auk 107:610-613.

Gutierrez, R. J., and J. Pritchard. 1990. Distribution, density, and age structure of spotted owls on two southern California habitat islands. Condor 92:491-495.

Machado, C. G. 1990. Vireo olivaceus (Vireonidae): uma espécie migratória nos bandos mistos de aves na Mata Atlântica do sudeste brasileiro. Ararajuba 1.

Plummer, M. V. 1990. Nesting movements, nesting behavior, and nest sites of green snakes (Opheodrys aestivus) revealed by radiotelemetry. Herpetologica 46:190-195.

Sinervo, B. 1990. The evolution of maternal investment in lizards: an experimental and comparative analysis of egg size and its effects on offspring performance. Evolution 44:279-294.

Sibley, C.G., and B.L. Monroe, Jr. 1990. Distribution and Taxonomy of Birds of the World. Yale University Press, New Haven, CT. xxiv + 1111 pp.

Bock, C.E., er.al. 1990. The effects of livestock grazing upon abundance of the lizard Sceloporus Scalaris, in southeastern Arizona. Jour. of Herp. 24(4):445-446.

Cully, A. and R. Sivinski. 1990. Monitoring endangered plants. Performance report for 1989-1990 to U.S. Fish and Wildlife Service, Albuquerque, NM.

Mongold, R. 1990. Bird survey forms from Roger Mongold. Includes Filmore canyon, Dripping springs and Soladad arroyo. Dona Ana Co., NM. . 9 p.

Dunn, J. L., and K. L. Garret. 1990. Identification of ruddy and common ground-doves. Birding 22:138-145.

Kaufman, K., 1990. The practiced eye: Common Merganser and Red-breasted Merganser. American Birds 44(5):1203-1205.

Menkens, G. E., Jr., D. E. Biggens, and S. H. Anderson. 1990. Visual counts as an index of white-tailed prairie dog density. Wildl. Soc. Bull. 18:290-296.

Rea, A. M., and K. L. Weaver. 1990. The taxonomy, distribution, and status of coastal California cactus wrens. Western Birds 21:81-126.

Varela-Romero, A., C. Galindo-Duarte, E. Saucedo-Monarque, L.S. Anderson, P. Warren, S. Stefferud, J. Stefferud, S. Rutman, T. Tibbits and J. Malusa. 1990. Re-discovery of Gila intermedia and Gila purpurea in northern Sonora, Mexico. Proceedings of the De

Johnson, T. B., et. al. 1990. Summary of literature on the Sonaran Desert population of the desert tortoise. Arizona Game and Fish Department, Nongame and Endangered Wildlife Program, Phoenix, AZ. 63 pp.

Castetter, R. 17 July 1990. Photographs of Perityle Cernua and habitat in Fillmore Canyon, Organ Mts.

Knapp, M. (1990) Unpublished letter to Doug Palmer, Associate Direct of Program at Philmount Scout Ranch, regarding fishery surveys. Carson Supervisor's Office, Carson National Forest, USFS.

Unkown (1990) Final Report For Mexican Spotted Owl Survey in the Blue Wilderness and Primitive Area. Contract Number 53-8399-0-0059. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 6 p.

Eldridge, J.L. 1990. Management for migrating shorebirds on national wildlife refuges in the midwest. Bell Museum of Natural History, Univ. of Minnesota, Minneapolis. 17pp.

Combs, K. P., and C. R. Griffin. 1990. Population dynamics, habitat use and management of short-eared owls on Nantucket Island, Massachusetts. University of Massachusetts, Department of Forest and Wildlife Management, Amherst, Massachusetts. Unpublished p

Scott, N.J, National Ecology Research Center, USFWS, MSB, UNM. 1990. Annual report: studies of the biology of the Sacramento Mountain salamander, Aneides hardii. Submitted to Don DeLorenzo, Biologist, Lincoln NF, USFS.

Mehlhop, P. 1990. Field survey to Gray Ranch - S. Animas Valley and Playa. 17 Aug. 1990.

Beane, J. C. and S. L. Alford. 1990. Destruction of a Pine Warbler brood by an adult cowbird. The Chat 54:85-7.

DeBruin, E. 1990. Field survey to Organ Mts, North Canyon, for Oenothera organensis. Sept 7, 1990.

Bowditch, J. 1990. A way to stop crow and owl predation at purple martin houses. Purple Martin Update 2(3):8-9.