Arthur Cleveland Bent
Published: 1968
Total Pages: 602
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This is Part 1 the twenty-first and last in a series of bulletins of the United States National Museum on the life histories of North American birds, with previous numbers issued as follows: 107, 113, 121, 126, 130, 135, 142, 146, 162, 167, 170, 174, 176, 179, 191, 195, 196, 197, 203, 211. This bulletin deals with the Order Passeriformes, Family Fringillidae, Genera Riichmondena through part of Pipilo.