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U. S. NATIONAL MUSEUM BULLETIN NO. 50, PART 5, PL. II I. TARABA transandeana. 4. DYSITHAMNUS septentrionalis.
Page:Birds of North and Middle America partV Ridgway.djvu/891
U. S. NATIONAL MUSEUM BULLETIN NO. 50, PART 5, PL. II I. TARABA transandeana. 4. DYSITHAMNUS septentrionalis.