r ot >= Sd 
) pe 
me Sea 
rs 
408 
NUMBERS PER SQUARE MILE OF THE PRINCIPAL WINTER Brrps IN CoRN ; 
Species Southern | Central | Northern State 
Quail 75 | 13 | 0 16 
Prairie chicken 0 | 0 | 18 vf 
Mourning dove 220 x | 6 | 31 
Flicker 50 | 0 | 0 } 6 
Crow 39 | 341 28 183 
Meadowlark 373 0 0 | 48 
English sparrow 0 | 41 12 25 
Goldfinch 8 0 54 | 22 
Lapland longspur 0 0 | 61 | 23 
Tree sparrow 33 24 | 5 Uy 23 
Junco 370 29 | 0 | 61 
Total | 1168 448 | 196 445 
* Present, but in trivial number. 
Our sectional data for weat are greatly distorted by flocks of Lap- 
land longspurs in northern Illinois, bringing the general average in wheat 
fields there to twice that for the southern and four times that for the 
central section. ‘These birds were in three flocks of 9, 13, and 175, re- 
spectively. The prairie horned lark was the only other species especially 
abundant in northern Illinois wheat fields, where it averaged 317 to the 
square mile, a ratio mainly due, however, to a single flock. The wheat 
fields of central Illinois were nearly destitute of birds, the leading species 
there being juncos, found but three times, in numbers from 1 to 9, and 
the tree sparrows, found but once, in a flock of 5. In southern Lllinois,. 
on nearly half a section of wheat, only 59 birds were to be found, juncos 
in the largest number (31 to the square mile) and next these the prairie 
horned larks, meadowlarks, and bluebirds, each in about two-thirds the 
above average. 
In the table next following, gross irregularities of the sectional 
lists are smoothed down somewhat in the column of averages for the 
state as a whole, but they are still too large to have much if any value 
as statistics. They show what was actually found by a limited number 
of observations in one winter, but warrant no inference that they would 
be duplicated in any similar area in another. 
NUMBERS PER SQUARE MILE OF THE PRINCIPAL WINTER BIRDS IN WHEAT 
Species Southern Central Northern State 
Prairie horned lark 24 5 317 52 
Crow 0 7 | 33 i¢ 
Meadowlark 24 * 0 11 
Lapland longspur 0 0 2366 291 
Tree sparrow 0 12 0 5 
Slate-colored junco 31 32 0 28 
Cardinal 0 5 0 2 aA 
Bluebird 22 0 0 10 ? 
Total 101 61 2716 406 
