THE BIRDS OF WISCONSIN. 
127 
Hylocichla alicire (Baird,). GRAY-CHEEKED THHISH. 
A common migrant. Most abundant in deep woods with 
underbrush, or second-growth, keeping mostly, however, near 
the edges and openings, but ever ready to retreat to the depths 
of the thicket at the first alarm. Arrives early in May, the 
majority passing north at once, some stragglers only remain- 
ing until the last of the month, and all returning early in Sep- 
tember on the way to their winter home. 
Hylocichla ustulata swainsoni (Cab.). OLIVE-BACKED THRUSH. 
An abundant migrant, and possible summer resident in 
suitable localities in the northern part of the State. Arrives 
in southern Wisconsin early in May, usually a few days later 
than alicice, with which it is much associated, not confining 
itself so closely to the woods, however, being a common bird 
in towns and even along the roadsides, or wherever there is 
cover. In the fall it is especially common through the middle 
of September, in scattered, woodland-roving flocks. This is 
one of the birds that one most frequently finds dead beneath 
the ever increasing network of electric wires that annually 
cause the death of thousands of individuals of the low-flying, 
night migrating species. 
Hylocichla ustulata almse Obcrli. ALMA'S THRUSH. 
Among specimens of thrushes sent Mr. Wm. Brewster for 
examination (March, 1902), were two of this sub-species. 
Both were shot at Lake Koshkonong late in May. The dif- 
ference was detected at once on comparing with others of 
swainsoni, and it must be very uncommon in Wisconsin, 
although Mr. Brewster later pronounces a specimen from 
Delavan as "almost if not quite gray enough for almw." 
Hylocichia guttata pallasii (Cab.). HERMIT THRUSH. 
An abundant migrant. This thrush is the first of the genus 
to arrive in the spring, and is usually found in southern Wis- 
consin by the middle of April. Migration records for many 
years give it the following range of dates in Walworth County : 
April 11 to May 17, and October 2 to 27. Specimens have 
been secured in Jefferson County in July, and a nest and eggs 
secured May 29, 1866, were supposed to belong to this species, 
but the identification is open to question. It is found in 
northern Wisconsin in summer, and no doubt breeds there. 
