Cooperative Research Units
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Evaluation of northern bobwhite in western Oklahoma

Bobwhite at Cooper Wildlife Management Area


August 2011 - July 2017


Northern bobwhite (Colinus virginianus) populations have experienced a general decline across most of their range over the last 40–50 years (Brennan 1991, Sauer et al. 2008). Over this time period, populations across their entire range have declined by an average rate of 3.0% per year (Sauer et al. 2008). In Oklahoma, quail populations also have experienced a long-term decline. Objectives are to determine the major factors driving long-term changes in Oklahoma bobwhite populations, particularly production and survival, relative to the interaction of fire and grazing, arthropod availability (particularly during nesting and brood-rearing), aerial and terrestrial predation, and aflotoxins and their effects on production and survival.


Current Staff

Federal Staff: 95

Masters Students: 239

Phd Students: 143

Post Docs: 53

University Staff: 239

5 Year Summary

Students graduated: 701

Scientific Publications: 1949

Presentations: 4261



  • David LeslieCo-Principal Investigator

Funding Agencies

  • Oklahoma Department of Wildlife Conservation


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey