Birds

The Galapagos finches (Geospizinae : a study in variation

1945 Lack, David |

Aves migratorias en Colombia

1959 Olivares, Antonio |

Aves de Chile

1984 Daskam, Thomas | Rottmann, Jürgen |

Effects of the Sespe Creek Project on the California condor : administrative report

1969 Sibley, Fred C. |

Hawks aloft : the story of Hawk Mountain

1960 Broun, Maurice |

A passing in Cincinnati, September 1, 1914

1976

Population ecology and management of Wisconsin pheasants

1965 Wagner, Frederic H. | Besadny, C. D. | Kabat, Cyril |

A study of pheasants of the 9,000 acre prairie farm, Saginaw County, Michigan

1952 Shick, Charles |

Among the birds in the Grand Canyon country

1939 Bailey, Florence Merriam |
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