Progressive Analysis of Avian Vocal Repertoires with Special Reference to the Brown Noddy

Brown Noddy (Anous stolidus) Science Article 3

abstract

Three steps are necessary in the study of avian vocal repertoires (aside from developmental and physiological aspects) (.1) The various vocalizations and the situations (context) under which they are given must be identified and described under natural conditions. The description should be objective enough so the calls can be readily recognized by other observers

NICHOLAS E. COLLIAS, The AUK, vol. 105

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