✦ LIBER ✦

Sexing Ring-Billed Gulls Externally

✍ Scribed by John P. Ryder

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

A METHOD FOR EXTERNALLY SEXING GULLS

✍ Gary W. Shugart 📂 Article 📅 1977 🏛 JSTOR ⚖ 389 KB

Play by Ring-Billed Gulls

✍ Hervey Brackbill 📂 Article 📅 1978 🏛 JSTOR ⚖ 120 KB

Ring-Billed Gull

✍ W. E. Saunders 📂 Article 📅 1907 🏛 The Wilson Ornithological Society 🌐 English ⚖ 224 KB

Longevity Records for Ring-Billed Gulls

✍ William E. Southern 📂 Article 📅 1975 🏛 University of California Press 🌐 English ⚖ 93 KB

Sex Ratio and Egg Sequence in Ring-Bille

✍ John P. Ryder 📂 Article 📅 1983 🏛 University of California Press 🌐 English ⚖ 153 KB

Ring-Billed Gulls Feed on Flying Ants

✍ Helmut C. Mueller and Daniel D. Berger 📂 Article 📅 1965 🏛 University of California Press 🌐 English ⚖ 91 KB