IS 
THE BIRDS OF UISCOXSIX 
counties, throughout the entire winter. Air. Brewster has 
kindly examined five selected specimens, taken during 
winter and early spring at Delavan and about Milton, and 
pronounces four of them typical rubripes and one inter- 
mediate. Usually found in company with large flocks of 
mallards which frequent the prairie cornfields and open 
spring-holes during the winter. 
Chanlelasmas streperus (Linn.). GADWALL. 
Found principally as a migrant during April and October. 
Xot nearly as common as formerly, in fact, at the present 
time, not at all common. Known to nest sparingly near Lake 
Koshkonong twenty-five or more years ago. Capt. Goss 
found it breeding in Horicon Lake (now Horicon Marsh). 
Mr. C. F. Carr records it as breeding in the extreme northern 
part of the state. "Gray widgeon" of the gunners of Southern 
Wisconsin, when distinguished at all from the baldpate or 
pintail. 
Mareca penelope (Linn.). WIDGEOK. 
A specimen of this species was purchased, fresh killed, 
from a gunner on Lake Mendota in 1874, and one was shot 
on Lake Koshkonong in 1875 by L. Kumlein. These birds 
were both adult males. Another adult male was mounted in 
1877 by Thure Kumlien for some sportsman, this specimen 
having also been shot on Lake Koshkonong. An immature 
male was also seen in a hunter's string of ducks as he boarded 
the train at Milton Junction, after a few davs shooting on 
Koshkonong. Besides the above there are other records for 
the state about which there is no doubt. 
Mareca americana (Gmel.). HA5.DPATE. 
C ommon migrant, spring and fall, but like most of our 
ducks, in constantly decreasing numbers. Formerly bred 
sparingly as far south as Lake Koshkonong, Horicon Marsh, 
etc., now in the less settled portions of the state only. Small 
flocks of a dozen or more immature males, that do not breed, 
are found on most of the larger inland lakes all summer. 
This species is to a considerable extent a parasite of the 
canvas-back, allowing the latter to dive and bring to the 
surface a bill full of Naiadaceae, and gobbling up the nutlets 
before the rightful owner can get at them. Know n to all the 
hunters as the "widgeon" or "bald widgeon." 
