Biology ETDs

Publication Date

7-27-1971

Abstract

A population of Burrowing Owls (Speotyto cunicularia) in Central New Mexico was studied during 1970 and 1971. Individuals of this population nest in Rock Squirrel (Spermophilus variegatus) burrows in an arroyo and railway cut-through. Physical aspects of burrows used by these owls were measured and comparisons were made with other nesting colonies. Sixty-seven Burrowing Owls were banded to facilitate investigations of behavior, population dynamics and migration. Burrowing Owl vocalizations were examined with the aid of a Sonagraph. Statements are made as to their physical description, etiology, function, ontogeny, relationship to other calls and associated behavioral displays. Descriptions of the owl's breeding, feeding, territorial and predator defense behavior also were recorded.

Language

English

Document Type

Thesis

Degree Name

Biology

Level of Degree

Masters

Department Name

UNM Biology Department

First Committee Member (Chair)

J. David Ligon

Second Committee Member

James Smith Findley

Third Committee Member

Marvin LeRoy Riedesel

Fourth Committee Member

James Roman Gosz

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