419 
If ‘we divide the eastern Illinois trip (113.4 miles) into three sec- 
tions corresponding to the divisions of the state, we find that in the 
Be. northern Illinois section from Harvey to Grant Park, (March 26 to 
28), three of the most abundant species (Lapland longspur, English 
sparrow, and prairie horned lark) were winter birds which together 
made up about 54 per cent of the 559 birds seen, and that the Lapland 
_longspur stands at the head of the list. Other winter species still 
lingering in small numbers were the junco, Smith’s longspur, and tree 
_ sparrow, but a much larger number of the following species, mentioned 
here 
herein in a diminishing order of numbers, had already come up from the 
south, viz., meadowlark, Wilson’s snipe, rusty blackbird, Canada goose, 
- bronzed grackle, robin, red-winged blackbird, vesper sparrow, migrant 
shrike, killdeer, cowbird, pintail duck, and phoebe. 
It has often been noticed that birds in migration concentrate at the 
southern end of Lake Michigan, passing thence northward along the 
western shore as by a high road, and an unusual number of birds were 
-found in this northern section of eighteen miles. These were mainly a 
flock of thirty-two Canada geese seen in a muddy pond in a plowed field, 
several small flocks of Wilson’s snipe, and large numbers of Lapland 
_longspurs still remaining, and of meadowlarks, prairie horned larks, 
and rusty blackbirds, all of which taken together made up 731 of the 
1061 birds to the square mile recorded from this northern section of 
the trip. 
Of the 24 species recognized, 14 were summer residents, 2 were 
migrants, 5 were permanent residents, and only 3 were winter residents ; 
or, taking account of the actual numbers of birds seen, 32 per cent were 
summer residents, 34 per cent were winter residents, 27 per cent were 
permanent residents, and 7 per cent were migrants. 
. 
RESIDENCE CLASSIFICAION OF SPECIES, NORTHERN ILLINOIS, 
HArvVEY To GRANT PARK 
Marcu 26 To 28, 1907, Eastern ILLinois Tri 
Species — Permanent Winter Summer Migrants All 
Numbers 5 3 14 2 24 
Per cent. 20.8 12.5 58.3 8.4 100 
NUMBERS AND PER CENTS OF ALL BIRDS 
Numbers 150 190 179 40 559 
Per cent. 26.8 34.0 32.0 Tie 100 
NUMBERS AND PER CENTS OF NATIVE BIRDS © 
Numbers 83 190 179 40 492 
Per cent. 16.9 38.6 36.4 8.1 100 
