WILD 3580 1st Edition Lecture 33 Outline of Last Lecture I Colors II Bird vocalizations III Song Production Outline of Current Lecture I Why do birds sing II Learning to sing III Non vocal sounds Current Lecture I II Why do birds sing Functions 1 Reproductive functions 2 Social functions a Hold flock together b Convey information about food 3 Individual functions a Perfect the song through practice Learning to sing Vocalizations 1 Inherited 2 Learned 3 Invented Syllable specific parts of the song Syntax arrangement of the syllables o A song is correct when is receives a response 4 stages in learning the song 1 Critical learning period a Period early in life when it must hear the adult song 2 Silent period a Song is stored not attempting to sing for later use These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute III 3 Subsong period a practice period b Using innate ability c Plastic song constantly changing and becoming more like the adult song 4 Song Crystallization period a Transformation of the plastic song into the adult song b Uses the song it heard during the critical learning period Non vocal sounds Ex Storks and herons o Mandible clapping Ex Ruffed Grouse o Drumming Mourning Doves o Wing whistling
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