Modifying avian feeding strategies to provide foraging opportunity, allow for contrafreeloading and improve the health of collection birds

The Philadelphia Zoological Gardens opened its gates to the public in 1874. At that time, zoo animals rarely survived more than several years in their captive environments. Little was known about the natural diet and behaviors of these wild animals, and keepers typically provided their charges with a variety of inappropriate food items. Nutrition programs for zoo animals simply did...

Foraging behavior and analysis of whole prey eaten by the American oystercatcher (Haematopus palliatus)

As part of a continuing study using the American oystercatcher (Haematopus palliatus), populations as biomonitors of coastal habitat quality, foraging behavior was quantified, and primary food items obtained for nutritional analysis during June and July, 2002. Two southeastern US barrier island sites were sampled: St. Catherines Island (SCI), GA and Cape Romain National Wildlife Refuge, SC. Bivalves including blood ark...