Patuxent Wildlife Research Center Population Change and Abundance of Black Ducks and Mallards in Eastern North America The Challenge: Over the last half of the 20th century, the breeding range of American black duck (Ana

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Date: 2012-12-19 14:58:55 Zoology Fauna of Europe Mallard American Black Duck Hunting Anas Ducks Ornithology		Patuxent Wildlife Research Center Population Change and Abundance of Black Ducks and Mallards in Eastern North America The Challenge: Over the last half of the 20th century, the breeding range of American black duck (Ana Add to Reading List Source URL: www.pwrc.usgs.gov Download Document from Source Website File Size: 336,23 KB Share Document on Facebook

	Mallard (Anas platyrhynchos) Status: Common breeder. Current trend: Mallards have become part and parcel of the scene in most public parks, and the map probably underestimates the true distribution of this common duck. DocID: 1v1qP - View Document
	Teal (Anas crecca) Status: Uncommon breeder. Current trend: A relatively secretive breeding duck, Teal is nonetheless present over a wide area. Upland lochs, often close to forestry and moorland appear to be favoured. V DocID: 1uI0D - View Document
	Gadwall (Anas strepera) Status: Rare (and occasional) breeder. Current trend: Increasing numbers of Gadwalls within Ayrshire, particularly in winter, have given rise to the hope that it might remain to become a breeding DocID: 1uGzh - View Document
	Predation and Parental Care at Blue‐Wing Teal (Anas discors) Nests in North Dakota Nickolas Conrad1, John Palarski1, Rebecca Eckroad1, Tanner Gue2, Kaylan Carrlson2, Susan N. Ellis‐Felege1 1 Un DocID: 1usQg - View Document
	Wigeon (Anas penelope) Status: Rare (and occasional) breeder Current trend: There remains only one area, in East Ayrshire, where Wigeon has bred in recent years. A few pairs and individuals spend the summer in potential DocID: 1uhYw - View Document