| |
| | Bird Watcher's Digest: Frequently Asked Questions: General Questions |
 | | For ground-feeding birds, arrange ornamental border fencing in two or three concentric circles about 16 inches to two feet apart, to disrupt a cat's ability to leap at feeders or to spring on birds. |
 | | To compensate, some birds, such as herons and hawks perform a "gular flutter" with their throats to vent excess heat from their bodies and use cooler external air, moving through their respiratory tract, to lower their body temperature. |
 | | A: The bird may have escaped from a predator, such as a cat, or molted as a result of trauma, diet, lice, etc. If cold weather recently affected your area, it's also possible that the woodpecker sheltered in a tree hollow overnight, and its tail feathers froze to the cavity wall. |
| www.birdwatchersdigest.com /site/backyard_birds/faqs/general.aspx (1258 words) |
|