Burt, D. B., and A. T. Peterson. 1993. Biology of cooperative-breeding scrub jays (APHELOCOMA COERULESCENS) of Oaxaca, Mexico. Auk 110:207-214.

U.S. Fish and Wildlife Service (USFWS). 1993. Notice of 90-day finding on petition to remove the Mexican spotted owl from the list of endangered and threatened wildlife and plants. Federal Register 58(183):49467-49468. 23 September 1993.

Martin, T.E. 1993a. Nest predation and nest sites: new perspectives on old patterns. BioScience 43:523-532.

Spamer, E.E., and A.E. Bogan. 1993. Mollusca of the Grand Canyon and vicinity, Arizona; new and revised data on diversity and distributions, with notes on Pleistocene-Holocene mollusks of the Grand Canyon. Proceedings of the Academy of Natural Sciences of

Hochstatter, F. 1993. The genus Sclerocactus Cactaceae - revised. Mann, Germany. 128 pp.

Greenberg, R., D.K. Niven, S. Hopp, and C. Boone. 1993. Frugivory and coexistence in a resident and migratory vireo on the Yucatan peninsula. Condor 95:990-999.

Miles, A. K., and H. M. Ohlendorf. 1993. Environmental contaminants in canvasbacks wintering on San Francisco Bay, California. California Fish & Game 79:28-38.

Tappe, P. A., and R. M. Whiting, Jr. 1993. Discrimination between constant-zero and non-zero survey routes on singing grounds of the American woodcock in eastern Texas. Pages 32-35 in J. R. Longcore and G. F. Sepik, editors. Proceedings of the eighth Amer

Mehlhop, P. and C. Vaughn. 1993. Threats to and sustainability of ecosystems for freshwater mollusks. pp. 69-77 in Covington, W. Wallace; Debano, Leonard F., technical coordinators. 1994. Sustainable ecological systems: implementing an ecological approach

Chapman, Wood and Griswold, Inc. 1993. Townsendia gypsophila population locations and size mapped on Holy Ghost Spring USGS 7.5" quad. (part of U93CHA01NMUS)

Burns, B. (1993) 1993 Mexican Spotted Owl Daytime Follow-up Visit Forms. Silver City Ranger District, Gila National Forest, USFS. 15 p.

Long, G. (1993) 1993 National Forests Northern Goshawk Inventory Form. Questa Ranger District, Carson National Forest, USFS. 17 p.

McMillan, K. (1993) Information Survey Data for U.S. Forest Service Habitat Conservation Assessment, Inland Cutthroat Trout. Retrieved from Regional Office, USFS. 4 p.

Van Auken, O.W. and J.K. Bush. 1993. Final report - 1992. The puzzle sunflower: management requirements of a low density species with limited range. Prepared for the Texas Nature Conservancy.

True, D. 1993. Hummingbirds of North America: attracting, feeding and photographing. University of New Mexico Press, Albuquerque, NM.

Burns, B. (1993) 1993 Mexican Spotted Owl Daytime Follow-up Visit Forms. Silver City Ranger District, Gila National Forest, USFS. 12 p.

McMillan, K. (1993) Information Survey Data for U.S. Forest Service Habitat Conservation Assessment, Inland Cutthroat Trout. Retrieved from Regional Office, USFS. 4 p.

Salazar, R. AND S. Desgeorges. 1993. Willow flycatcher survey detection and nest site data forms developed by Partners in Flight to establish occurrence of Empidonax traillii extimus in NM. Summary added by S.O. Williams III, NM Dept Game and Fish.

Nagorsen, D. W., and R. M. Brigham. 1993. Bats of British Columbia. Vol. I. The Mammals of British Columbia. UBC Press, Vancouver, 164 pp.

Burger, J. 1993. Shorebird squeeze. Natural History 5/93, pp. 8-14.

U.S. Fish and Wildlife Service (USFWS). 1993. Proposed determination of critical habitat for the Mojave Desert population of the desert tortoise. Federal Register 58(166):45756-45768. 30 August 1993.

Maisonneuve, C. 1993. Is population decline in short-billed dowitchers, LIMNODROMUS GRISEUS, related to hydroelectric projects? Can. Field-Nat. 107:253-255.

Anderson, J. (1993) 1993 Mexican Spotted Owl Inventory Form. Sandia Ranger District, Cibola National Forest, USFS. 34 p.

Ostfeld, R. S., M. C. Miller, and J. Schnurr. 1993. Ear tagging increases tick (Ixodes dammini) infestation rates of white-footed mice (Peromyscus leucopus). J. Mamm. 74:651-655.

Cordova, L.O. (1993) Unpublished Letter to R. Popp, Containing 1993 Northern Goshawk Survey (Accipiter gentilis). Lincoln Supervisor's Office, Lincoln National Forest, USFS. 5 p.

Idaho Native Plant Society. 1993. Federal candidate (C1 and C2) and listed rare plants of Idaho. unpaginated.

Steele, B. B. 1993. Selection of foraging and nesting sites by black-throated blue warblers: their relative influence on habitat choice. Condor 95:568-579.

McMillan, K. (1993) Information Survey Data for U.S. Forest Service Habitat Conservation Assessment, Inland Cutthroat Trout. Retrieved from Regional Office, USFS. 6 p.

Scott Jr., N.J. and J.N. Stuart of National Ecology Research Center, USFWS, Museum of SW Biology, UNM. 1993. Annual report: studies of the effects of forest management practices on the Sacramento Mt salamander, Aneides hardii. Submitted to Don DeLorenzo,

Mehlhop, P. 1993. Field survey to Horse Trap Spring on 31 May 1993.

Browning, M. R. 1993. Comments on the taxonomy of Empidonax traillii (Willow Flycatcher). Western Birds 24:241-257.

U.S. Fish and Wildlife Service (USFWS). 1993. Notice of finding on a petition to delist the grizzly bear in the Northern Continental Divide ecosystem, the Cabinet-Yaak ecosystem, the Selkirk ecosystem, and the North Cascades ecosystem. Federal Register 58

Burns, B. (1993) Collected 1993 Mexican Spotted Owl Monitoring Forms. Silver City Ranger Distirct, Gila National Forest, USFS. 6 p.

Keller, C. M. E., C. S. Robbins, and J. S. Hatfield. 1993. Avian communities in riparian forests of different widths in Maryland and Delaware. Wetlands 13:137-144.

Rumble, M. A., and S. H. Anderson. 1993. Habitat selection of Merriam's turkey (MELEAGRIS GALLOPAVO MERRIAMI) hens with poults in the Black Hills, South Dakota. Great Basin Nat. 53:131-136.

Cowley, D.E. 1993. Rio Grande cutthroat trout breeding strategy. . 66 p.

Wenney, D. G., R. L. Clawson, J. Faaborg, and S. L. Sheriff. 1993. Population density, habitat selection, and minimum area requirements of three forest-interior warblers in central Missouri. Condor 95:968-979.

Kartesz, J.T. 1993. Species distribution data for vascular plants of 70 geographical areas, from unpublished data files at the North Carolina Botanical Garden, July, 1993.

McMillan, K. (1993) Information Survey Data for U.S. Forest Service Habitat Conservation Assessment, Inland Cutthroat Trout. Retrieved from Regional Office, USFS. 7 p.

Williams, S.O. III. 1993. Preliminary listing and status assessment of neotropical migrant birds in New Mexico.

Herkert, J.R., R.E. Szafoni, V.M. Kleen, and J.E. Schwegman. 1993. Habitat establishment, enhancement and management for forest and grassland birds in Illinois. Illinois Department of Conservation, Division of Natural Heritage, Natural Heritage Technical

Cade, B. S., and R. W. Hoffman. 1993. Differential migration of blue grouse in Colorado. Auk 110:70-77.

U.S. Fish and Wildlife Service (USFWS). 1993. Notice of availability of draft agreement regarding Section 7 consultation, sufficient progress and historic projects, recovery implementation program for the endangered fish species in the upper Colorado Rive

Mathews, N. E., and W. F. Porter. 1993. Effect of social structure on genetic structure of free-ranging white-tailed deer in the Adirondack Mountains. J. Mamm. 74:33-43.

Spears, G. S., F. S. Guthery, S. M. Rice, S. J. DeMaso, B. Zaiglin. 1993. Optimum seral stage for Northern Bobwhites as influenced by site productivity. Journal of Wildlife Management 57:805-811.

Gibbs, J. P. 1993. Personal communication.

Oldemeyer, J. L., et al. 1993. Proceedings of the symposium on the management of prairie dog complexes for the reintroduction of the black-footed ferret. U.S. Fish and Wildlife Service Biological Report 13. iii + 96 pp.

Bowerman, W. W., T. G. Grubb, J. P. Giesy, A. J. Bath, and G. A. Dawson. 1993. Population composition and perching habitat of wintering Bald Eagles in northcentral Michigan. Canadian Field Naturalist 107: 273- 278.

Haig, S.M. and J.H. Plissner. 1993. Distribution and abundance of piping plovers: results and implications of the 1991 international census. Condor 95:145-156.

Norment, C.J. 1993. Nest-site characteristics and nest predation in Harris' Sparrows and White-Crowned Sparrows in the Northwest Territories, Canada. Auk 110(4):769-777.

Taylor, H. L., and D. Buschman. 1993. A multivariate analysis of geographic variation in the teiid lizard Cnemidophorus tigris septentrionalis. Herpetologica 49:42-51.

Mehlhop, P. 1993. NM snail survey to GIla NF, May 31, 1993.

Knight, P. March 1993. Map of potential habitat and actual accurrences of Townsendia gypsophila in the San Ysidro area of Sandoval County.

Burns, B. (1993) 1993 Mexican Spotted Owl Inventory Forms. Silver City Ranger District, Gila National Forest, USFS. 5 p.

Maschinski, J. 1993. 1993 Argemone field collection reports. . 5 p.

McMillan, K. (1993) Information Survey Data for U.S. Forest Service Habitat Conservation Assessment, Inland Cutthroat Trout. Retrieved from Regional Office, USFS. 6 p.

West, S. (1993) Bird Observation Data Sheet. Guadalupe Ranger District, Lincoln National Forest, USFS. 18 p.

DeBruin, E. 1993. Field survey to Farmington Resource Area - Gilia formosa plots 1-30 in May, 1993.

Wright, J. W., and L. J. Vitt. 1993. Biology of whiptail lizards (genus Cnemidophorus). Oklahoma Museum of Natural History, Norman, Oklahoma.

Carpenter, R.F. (1993) Unpublished Letters Regarding Will Flycatcher Surveys. Retrieved from Guadalupe Ranger District, Lincoln National Forest, USFS. 45 p.