WASHINGTON (AP) — Prairie dogs are the Paul Reveres of the Great Plains: They bark to alert neighbors to the presence of predators, with separate calls for dangers coming by land or by air. “Prairie ...
Intro; Abstract; Acknowledgements; Contents; Chapter 1: How to Study Predator Recognition; 1.1 Observation in the Wild; 1.2 Experiments; 1.2.1 Experiments on Nests; 1.2.2 Experiments on Winter Feeders ...
The saltmarsh sparrow population has declined by nearly 90% since 1998 due to rising sea levels flooding their ground nests. A research group in Rhode Island is using homemade floating nests, or "arks ...
Conservationists went to dramatic lengths to save the birds, including pumping boiling hot water into the ground to ward off fire ants. Florida grasshopper sparrow chicks peer up out of their ground ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results