404 THE AMERICAN MIDLAND NATURALIST 
how long I can not say, for I left Notre Dame soon after the 1st 
of August. 
August of 1915 had the largest number of species of any of 
the summer months—73. The greater part of this month was 
spent by the writer at Bankson Lake, four miles from Lawton, 
Mich. The country around this lake is very hilly, and deep woods 
abound in the neighborhood. From this difference in the character 
of the land, certain species of birds, very rare or unknown at this 
time of. the year at Notre Dame, Indiana, are not uncommon in 
the vicinity of Bankson Lake. ‘These rare species are: both 
kinds of Yellowlegs, Great Blue Heron, Gnatcatcher, Yellow- 
throated Vireo, Acadian Flycatcher, and Tufted Titmouse. 
On the other hand, some common species found at Notre 
Dame are wholly absent or very rare near Bankson Lake. Such 
are: the Blue Jay, Meadowlark. Bronzed Grackle, Cowbird, House 
Wren, and Purple Martin. Some summers I have found the 
Purple Martin fairly common iu this region, but this year there 
was only one record for August. ‘The House Wren and Cowbird 
also had one record; in other years these species were seen oftener. 
The Bronzed Grackle, which had two records, was not found at 
all in August, 1914. The Meadowlark, loving a level country, is 
not seen on the hills of this section. Blue Jays, in small numbers, 
inhabited the more open woods near Bankson Lake some years 
ago, but for the past three summers they have not been observed 
here. 
The most favorable place for observation near Bankson Lake 
is the deep woods, which are very extensive. Here such rare 
species as the Acadian Flycatcher, Yellow-throated Vireo, Tufted 
Titmouse and Gnatcatcher are common species. Here, too, the 
first warblers reappear toward the end of the month. This year 
I found fewer warblers in August than in 1914. There were seven: 
the Yellow Warbler, Blackburnian, Black and White, Redstart, 
Magnolia, Canadian, and Overbird. 
The autumn migration begins in August, although a few 
species may not be found even in this month. Such are the Dick- 
cissel and Loggerhead Shrike. My last record this year for the 
Shrike was July 15; for the Dickcissel, July 24. The Yellow 
Warbler departed on August 15; the Orchard Oriole, on August 
28; the Maryland Yellowthroat, on August 21; the Grasshopper 
Sparrow, on Aug. 10. The Blackburnian, and Black and White 
