Ann Arbor: U.M.I. Dissertation Services, 1981. Reprint. Paperback. Octavo [21 cm] Dissertation bound in plain blue wraps with a printed label on the front wrap. Very good condition. Sunned spine. Item #38621
This is an authorized facsimile, made from the microfilm master copy of the original dissertation or masters thesis published by UMI. A dissertation covering the accumulations of "lost birds," birds whose numbers multiplied between 1962-1965. From the prologue- "Arm chair biologists have appraised the situation and offered explanations for the occurrences of these birds. Some of their theories are contradictory, most are incomplete and none are truly mechanistic in approach. It is the purpose of this dissertation to present a comprehensive theory for this phenomenon based upon the total accumulation of the occurrences of these birds in California, observations of these birds in the wild and the results of more than 500 orientation cage experiments on 24 individuals captured during the falls of 1969-1971."