Barn owl: briefly -- Study areas in Scotland -- Research methods -- Distribution and variation -- Variation within subspecies -- Variation among subspecies -- Related spedies in the genus Tyto -- Diet ...
"Submitted to the Office of Naval Research under Contract N00014- 66-C0241; NR 083-004, with the National Science Foundation Grant GA-1625; with the American Petroleum Institute API 85A; and with the ...
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