How to Know the Ducks, Geese And Swans of North America, All the Species Being Grouped According to Size And Color
The book How to Know the Ducks, Geese And Swans of North America, All the Species Being Grouped According to Size And Color was written by author Charles B Charles Barney Cory Here you can read free online of How to Know the Ducks, Geese And Swans of North America, All the Species Being Grouped According to Size And Color book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is How to Know the Ducks, Geese And Swans of North America, All the Species Being Grouped According to Size And Color a good or bad book?
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Length, 17.75; wing, 8.25; tarsus, 1.30; bill, 1.6U. Aythyii mariUi iiuarctira (male). (t'laiuilu.) This s))ecic'S cjcctirs throughout North America, breeding north of the United States. Jt ranges in winter south to the Bahama Islands and Guate- mala, although it is not nearly as abundant in Southern waters as A. in. affivis, to which it is very closely allied. Tiiere are, apparently, no constant characters (with the possible exception of size) by which it may ))e sei)arated from tiiat species ...; the head, as a rule, shows greenish reflections, while the Lesser Scaup Duck geiierally has the head glossed with purplish, but these characters cannot lie always depended upon and the main difference is one of size. DUCKS, GEESK AND SWANS OF NORTH AMERICA. 57 The eggs are described as being pale olive buff, and number from six to ten. The nest is built on the ground. The only duck (except the Lesser Scaup Duck) with which this common bird is likely to be confounded is the Ring-neck, and it can always be distin- guished at a glance from that species by the white band on the wing (speculum) , which is always gray in the Ring-neck.
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