Date of Award:

5-1-1967

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Biology

Department name when degree awarded

Zoology

Committee Chair(s)

Keith L. Dixon

Committee

Keith L. Dixon

Abstract

Avian vocalizations have been of great interest to ethologists and ornithologists for many years because of the many forms of interspecific and intraspecific information they convey (Marler, 1959; Armstrong, 1963). Various methods have been utilized to describe bird vocalizations but most, because of their subjectivity, have proven inadequate for detailed investigations. It was not until the development of the Sound spectrograph that a satisfactory method for bio-acoustical analysis became available.

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