Song dialects, and vocal development of Savannah Sparrows (Passerculus sandwichensis labradorius, Howe) breeding in Newfoundland and the Sain-Pierre et Miquelon islands [microform], Ottawa, Bibliothèque nationale du Canada.
Titre : Song dialects, and vocal development of Savannah Sparrows (Passerculus sandwichensis labradorius, Howe) breeding in Newfoundland and the Sain-Pierre
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