The passerine bird song system as a mode
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Arnold, Arthur P.
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Article
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1990
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John Wiley and Sons
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English
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In the neural system controlling song in passerine birds, gonadal steroid hormones have potent effects on neural growth and differentiation. During ontogeny, sex differences in the secretion of steroid hormones lead to dramatic sex differences in neuron number and structure. In adulthood, sex steroi