✦ LIBER ✦

A Hybrid Grasshopper Sparrow × Savannah Sparrow

✍ Scribed by Robert W. Dickerman

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

"Egg-Dumping" by the Grasshopper Sparrow

✍ John A. Wiens 📂 Article 📅 1971 🏛 University of California Press 🌐 English ⚖ 123 KB

Savannah sparrow sings a white-crowned s

✍ Brian A. Cooper; Edward C. Murphy 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 178 KB

The Grasshopper Sparrow in Ontario

✍ W. E. Saunders 📂 Article 📅 1910 🏛 University of California Press 🌐 English ⚖ 88 KB

Altruism in the Savannah sparrow?

✍ Patrick J. Weatherhead; Raleigh J. Robertson 📂 Article 📅 1980 🏛 Springer 🌐 English ⚖ 202 KB

Vocalizations of the Savannah Sparrow

✍ Robert E. Gobeil 📂 Article 📅 1970 🏛 JSTOR ⚖ 469 KB

Altruism in the Savannah Sparrow?

✍ Patrick J. Weatherhead and Raleigh J. Robertson 📂 Article 📅 1980 🏛 Springer 🌐 English ⚖ 438 KB