532 
LAMELLIROSTRAL SWIMMERS — ANSERES. 
buff, the pileum and nape finely streaked ; rest of head and neck, and lower parts generally, 
brownish white, the head and neck streaked with dusky, except on the chin and upper part of the 
throat, the streaks more dense immediately before and behind the eye, thus forming an indis- 
tinct stripe on the side of the head ; feathers of the lower parts generally with dusky grayish 
brown centres, forming spots when exposed, less distinct on the abdomen, where sometimes 
obsolete. 
Total length, about 16 inches ; extent, about 25 ; wing, 7.00-7.50 ; culrnen, 1.40-1.65; tarsus, 
1.20-1.30 ; middle toe, 1.40-1.45. 
The Blue-winged Teal has a more restricted distribution than the Green-winged, 
and is also a much more southern species. It is rarely to be met with north of 60° 
Female ( nat. size ). 
N. latitude, and, so far as is positively known, is not found on the Pacific coast 
between the Gulf of California and Vancouver Island, although occurring on the 
Pacific coast of Mexico and Central America, as well as, more sparingly, on the coast 
of Alaska. It is supposed to breed in various favorable localities from Florida to 
Labrador, and from Mazatlan to the Saskatchewan, but principally between latitudes 
42° and 58° N., and most abundantly in the Mississippi Valley. It occurs sparingly 
at Fort Resolution, Lake Winnipeg, Shoal Lake, and even at Fort Yukon. 
Mr. Salvin found it common in the winter on Lake Duenas, in Guatemala, but not 
remaining through March. Dr. Bryant gives it as common in winter at Bahamas. 
It was also seen at Sultana Mixtlan, in the Pacific coast region. Mr. G. C. Taylor 
found it in Honduras, both at Tigre Island and on Lake Yojoya. 
It was met with in Western Mexico, near Mazatlan, by Colonel Grayson, in which 
region he speaks of it as being a very common species, a few remaining throughout 
the summer, and probably breeding there. Mr. Dresser found it common throughout 
Northern Mexico and Southern Texas, where, as supposed by Dr. Heermann, it breeds. 
Mr. N. B. Moore found Ducks of this species abundant in Florida, and believes that 
some must breed in that State, as he has seen them in fresh ponds near Sarasota Lake 
at every season of the year, and has killed the young in September on Miska 
Lake. He thinks it probable that they breed on the islands, or about the shores of 
Lake Okeechobee. 
Mr. Bernard Ross found this species abundant in the vicinity of Great Slave Lake, 
where it was much more abundant than the Green-wing. Mr. Kennicott met with it 
east of the Rocky Mountains only, where he found it nesting in rather open ground ; 
