A singing male savannah sparrow from Massachusetts, United States.
Textbook Reference
: Intraspecific Variation and Dialects, p. 44
Textbook Reference: Intraspecific Variation and Dialects, p. 32
A singing male savannah sparrow from Massachusetts, United States.
Textbook Reference
: Intraspecific Variation and Dialects, p. 44
Textbook Reference: Intraspecific Variation and Dialects, p. 32
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