✦ LIBER ✦

North American land birds migrate along three flyways

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Population Declines in North American Bi

✍ Chandler S. Robbins, John R. Sauer, Russell S. Greenberg and Sam Droege 📂 Article 📅 1989 🏛 National Academy of Sciences 🌐 English ⚖ 730 KB

Why migrate during the day: a comparativ

✍ G. BEAUCHAMP 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

Cooke on Migration Routes of North Ameri

✍ Review by: W. DeW. M. 📂 Article 📅 1911 🏛 University of California Press 🌐 English ⚖ 131 KB

Three New Forms of North American Birds

✍ William Brewster 📂 Article 📅 1887 🏛 University of California Press 🌐 English ⚖ 266 KB

Evolution of the Colors of North America

✍ Charles A. Keeler 📂 Article 📅 1893 🏛 University of Chicago Press 🌐 English ⚖ 331 KB

LAND-AND SEA-BIRD MIGRATION IN NORTH-WES

✍ D. W. Snow; D. F. Owen; R. E. Moreau 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 803 KB