✦ LIBER ✦

The Display Flight of the North American Ruddy Duck

✍ Scribed by Michael R. Miller, Robert M. McLandress and Betty Jean Gray

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Summer food and feeding of the ruddy duc

✍ Siegfried, W. R. 📂 Article 📅 1973 🏛 NRC Research Press 🌐 English ⚖ 574 KB

Post-embryonic development of the Ruddy

✍ W. ROY SIEGFRIED 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 639 KB

A model of ruddy duck Oxyura jamaicensis

✍ G. C. SMITH; I. S. HENDERSON; P. A. ROBERTSON 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 280 KB

Note on Bill Color of the Ruddy Duck, Ox

✍ Helen Hays and Helen M. Habermann 📂 Article 📅 1969 🏛 University of California Press 🌐 English ⚖ 114 KB

Wetmore on Secondary Sexual Characters i

✍ Review by: W. S. 📂 Article 📅 1917 🏛 University of California Press 🌐 English ⚖ 126 KB

A Note on the Tracheal Air-Sac in the Ru

✍ Alexander Wetmore 📂 Article 📅 1918 🏛 University of California Press 🌐 English ⚖ 141 KB