'/'///•; BIRDS OF WISCONSIN. 
119 
England specimens of the same." Prof. Ridgway's views (1) 
seem to be the same as Mr. Brewster's, and our Wisconsin 
yellow-throat will, without doubt, stand as brachidactyla. 
Icteria virens (Linn.). YELLOW-BREASTED CHAT. 
In the southern part of the state the chat is a regular 
summer resident, and in favorable localities breeds rather com- 
monly. It is almost invariably found in some large opening in 
the wood which has thickly grown up to hazel brush and dog- 
wood, and it is in the latter that the nest is usually placed. 
The birds are, as a rule, exceptionally shy and retired, and 
would pass unnoticed by the average observer were it not for 
the occasional outbursts of their variable mimicry and song. 
Then by careful stalking one may perhaps be fortunate enough 
to obtain a glimpse of a streak of yellow and green darting into 
the air, only to tumble over again into some thicket. When 
one has located the nest, however, all is different, and one has 
abundant opportunity to see and hear the birds, as they scold 
and fret, forgetting their wildness for the time, and coming 
within a few feet of the intruder. The least disturbance, even 
to barely touching the nest, is often enough to cause the birds 
to throw out the eggs, and desert the place, so shy and sus- 
picious are they. The hottest and brightest June or July day 
is the best to find chats, as it is then that they are at their best 
in ventriloquist calls and song. Nesting begins early in June, 
and incubation is finished by the middle of the month.. The 
nests are favorites with the cowbird and nearly always contain 
one or more of its eggs. The most northern record we have for 
this species in the state is at Stevens Point. 
Wilsonia mitrata (Gmel.J. HOODED WARBLER. 
Not an uncommon migrant along Lake Michigan in 
southern Wisconsin, and it undoubtedly breeds to the north- 
ward of Milwaukee. Much less common in the interior than 
along the lake shore. We have seen this species repeatedly 
at Two Rivers in July, but in Jefferson, Dane, and Rock coun- 
ties only in the spring migration in May. We have also 
taken specimens at Milwaukee in the latter part of May. 
Wilsonia pus ilia (Wvls.J. WILSON'S WARBLER. 
A common migrant in southern Wisconsin, passing north- 
ward late, often as late as the first week of June. Undoubtedly 
_ 1. Birds N. and Mid. Am.. Bull. U. S. Nat. Mus., No. 50, pt. II, pp. 
655-665. 
