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The Academy of Natural Sciences of Philadelphia and the American Ornithologists' Union, 1993. Binding: Paperback. Condition: New. Pages: 16 Species account number 65 in the Birds of North America Life Histories for the 21st Century series. In 1992 the American Ornithologists' Union in partnership with the Academy of Natural Sciences.....
The Academy of Natural Sciences of Philadelphia and the American Ornithologists' Union, 1993. Binding: Paperback. Condition: New. Pages: 20 Species account number 66 in the Birds of North America Life Histories for the 21st Century series. In 1992 the American Ornithologists' Union in partnership with the Academy of Natural Sciences.....
Academic Press, 1999. Binding: Hardcover. Condition: New. Pages: 685 The primary reference for avian physiologists.
The Academy of Natural Sciences of Philadelphia and the American Ornithologists' Union, 1997. Binding: Paperback. Condition: New. Pages: 24 Species account number 305 in the Birds of North America Life Histories for the 21st Century series. In 1992 the American Ornithologists' Union in partnership with the Academy of Natural Sciences.....