Study shows condors, an endangered species, can reproduce without mating
south Australia – Mary Ann Steggles
Turkey vultures have peculiar nesting habits, study finds - Green Blog - ANR Blogs
tracking birds – Mary Ann Steggles
AS THE BIRDS OF PREY HEAD SOUTH - The New York Times
Vultures of the World: Essential Ecology and Conservation by Keith L. Bildstein
Osprey behaviour – Page 2 – Mary Ann Steggles
Shifting Weather Patterns Bring New Bird Species to New York City - The New York Times
Condor Comeback (Scientists in the Field): Montgomery, Sy, Strombeck, Tianne: 9780544816534: : Books
Hawk Mountain – Mary Ann Steggles
About — Gayatri Malhotra
Pictures of Vultures Feeding on Carcasses