#īird sounds provided by The Macaulay Library at the Cornell Lab of Ornithology, Ithaca, New York. It'll be the most colorful and sound-filled email you'll receive every week. Take the plunge yourself and sign up to receive the Weekly Preview of BirdNote shows. When you stop by a lake or saltwater beach this fall, keep an eye out for “dabblers” and “divers.” And take your time, because the divers may pop into view only when they need to catch a breath of air. “Divers” with narrow, pointed bills snatch fish, while those with flatter bills, like Common Goldeneyes search along the bottom for invertebrates such as small clams. “Diving ducks,” including scaup and mergansers, forage while swimming under water, using their feet or wings for propulsion. They are common in Puget Sound, especially at the southern end of the sound, and in. Barrows Goldeneyes are aggressive and territorial, even more so than Common Goldeneyes. They forage around pilings, and most of their foraging is under water. They strain bits of vegetation and small invertebrates with their flattened bills. Barrows Goldeneyes are diving ducks, and whole groups of goldeneyes will dive at the same time. “Dabbling ducks,” like the wigeons we’re hearing, feed by dipping their bills in water just below the surface, or dunking head first, so all you see are their tails pointing skyward. Take a close look at autumn’s ducks as they forage on the water. Goldeneyes, scaup, wigeons and other species join familiar year-round ducks such as Mallards. In most parts of North America, fall migration brings the greatest diversity of ducks we’ll see all year. This is BirdNote! Autumn brings millions of ducks flying south after nesting in the north. Adapted by Bob Sundstrom from a script by Frances Wood
0 kommentar(er)
