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The ecological distribution of vertebrates and flowering plants in Capote Canyon, Presidio County, Texas
(Texas A&M University, 1969)
Not available
Competitive relationships among selected species of flycatchers (Tyrannidae) in Trans-Pecos Texas
(1971)
Two pairs of species (Tyrannus verticalis and T. vociferans, Sayornis nigricans and S. saya) were selected for a study of competitive relationships among sympatric species of birds in the Trans-Pecos region of Texas. Field ...