. Nests and eggs of North American birds [microform]. Ornithology; Birds; Ornithologie; Oiseaux. NORTH AMEItWAN BIRDS. 37 the NorthweBtem States to Alaska. Nests commonly in many of the lakes and ponds of Manitoba. On the marshes and lakes lu the mountain valleys of Oregon the Canvas-back constrrcts its nest at the edge of the water or near it in tall rushes or grass. The Canvas-back is Uw highly esteemed table dnok. When feeding on wild celery the flesh is said to acquire a peculiarly fine flavor, but under other circumstances not one person in ten thousand can tell it from any other duck, on
. Nests and eggs of North American birds [microform]. Ornithology; Birds; Ornithologie; Oiseaux. NORTH AMEItWAN BIRDS. 37 the NorthweBtem States to Alaska. Nests commonly in many of the lakes and ponds of Manitoba. On the marshes and lakes lu the mountain valleys of Oregon the Canvas-back constrrcts its nest at the edge of the water or near it in tall rushes or grass. The Canvas-back is Uw highly esteemed table dnok. When feeding on wild celery the flesh is said to acquire a peculiarly fine flavor, but under other circumstances not one person in ten thousand can tell it from any other duck, on the table. It is often confounded with the Redhead, but there is no occasion for this, even when the different sexes come to hand in any state of plumage. Although both species are similar in plumage, their heads alone will differentiate them. The Red- head has a high forehead, while the Canvas-back's head slopes gradually down to the bill and the bill rises hJ2;h on the fore- head. In the male Redhead the entire head i,. clear chestnut red, with a coppery tint, and the bill pale grayish-blue, with a dark tip. In the Canvas-back nearly the whole head is blackish-brown, and the bill blackish. The general color of the females of both is brownish throughout. The nest of the Canvas-back is generally made on the ground in marshy places; tall, rank grass is usually selected. It is composed of grass and weeds, less thickly lined with feathers than the nests of other ducks are. The eggs are from six to ten in number, pale grayish-drab or greenish-buff, elliptical, and measure from to long by to 147. Canvas-back. 148. AMEBICAN SCAUP DUCK. Aythya marila nearetlm Stejn. Geog. DIst.âNorth America, breeding far north. This and the next species are closely allied, and are variously known as Blue- bills, Raft Duck, Floating Fowl and Shufflers. This one is called Big Blackhead or Greater Scaup Duck, on account of its size. It inhabits the whole of North America, a
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