. Michigan bird life : a list of all the bird species known to occur in the State together with an outline of their classification and an account of the life history of each species, with special reference to its relation to agriculture ... . to Order V. ANSERES.—Swans, Ducks and Geese. Family 15. ANATID^. A. Neck very long, at least as long as the body; tarsus reticulate. Large, entirely white birds. Neck shorter than the body. Ducks and Geese. B, BB. B. Legs comparatively long and toes short (shank or tarsus longer than the middle toe without its nail); tarsus reticulate. Ge
. Michigan bird life : a list of all the bird species known to occur in the State together with an outline of their classification and an account of the life history of each species, with special reference to its relation to agriculture ... . to Order V. ANSERES.—Swans, Ducks and Geese. Family 15. ANATID^. A. Neck very long, at least as long as the body; tarsus reticulate. Large, entirely white birds. Neck shorter than the body. Ducks and Geese. B, BB. B. Legs comparatively long and toes short (shank or tarsus longer than the middle toe without its nail); tarsus reticulate. Geese. BB. Legs comparatively short and toes long (shank or tarsus shorter than middle toes without its nail); tarsus scutellate in front (Fig. 15). Ducks. DUCKS. KEY TO SPECIES. A. Bill long and narrow (seldom more than J inch wide at narrowest partnever ^ inch wide), edges of both mandibles with saw-like Ducks. B, BB. (Fig. 10).B. Teeth long, sharp-pointed, inclined backward; bill long (2 inches ormore) wing over 8 inches. Goosander and Red-breasted Mer-ganser. Nos. 30, Teeth short, blunt, not inclined backward; bill short (much lessthan 2 inches); wing under 8 inches. Hooded Merganser. No. 32. WATER BIRDS. 71. Fig. 14. Bill of Mallard showinglamellae. (Original) Blue-winged Teal. AA. Bill short and broad (never less than ^ inch wide at narrowest place),edges of mandibles with strainer-like plates (Fig. 14) instead of saw-like teeth. C, Tail of narrow, stiff feathers, only itsvery base hidden by the extremelyshort upper tail coverts. RuddyDuck. No. Tail of ordinary type with broad softfeathers well covered at base byupper tail coverts. D, Hind toe without a distinct flap orlobe (Fig. 15). River and PondDucks. E, Small, wing less than 8^ inches(Teal). F, FF. F. Shoulder (lesser wing-coverts) light blue. No. Shoulder (lesser-wing coverts) grav. Green-winged Large, wing more than 8^ inches. G, GG. G. Feathers
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Keywords: ., bookcentury1900, bookdecade1910, bookidmichiganbird, bookyear1912
