2 oe ae ee 
LSS Te 
205 
ALL Birps, PRINCIPAL SPECIES, AND NATIVE Birps 
IN WHEAT AND Oats, CUT AND UNCUT, 
MipsuMMeEkrs oF 1907 anp 1909 
1907 
Wheat | Oats 
Uncut | Cut | Uncut | Cut 
Birds Num-| To |Num-| To |Num-| To /|Num- To 
bers | sq. mi.| bers | sq. mi.| bers | sq. mi.}| bers | sq. mi. 
English sparrow 77 371 9 _ 38 55 66 | 231 245 
Mourning dove 20 95 57 241 13 16 6 6 
Meadowlark 12 57 12 51 32 39 57 61. 
Prairie horned lark 0 0 8 34 0 0 14 15 
Dickcissel 9 43 3 13 49 59 6 6 
All birds 153 728 291 | 1228 | 385 469 | 422 445 
Native birds 76 362 | 282 1194 | 330 397 | 191 203 
| 1909 
English sparrow 25 80 15 7 | 611 861 | 417 379 
Mourning dove 8 25 29 150 9 13 16 15 
Meadowlark 12 38 0 0 23 32 75 72 
Prairie horned lark 23* 74 0 0 8 4 1 i 
Dickcissel 10 32 1 5 29 41 6 6 
All birds 133 423 128 635 | 813 1145 | 842 805 
Native birds 108 344 113 584 | 202 285 | 425 426 
* Twenty in one flock. 
Tue Birps oF THE CoRN FIELD 
With the exception of occasional raids made on fields of corn by 
flocks of crow-blackbirds and cowbirds in fall to feed on grain torn 
from the tips of the ears, there is little in our data to indicate that our 
Illinois birds find any special lure or attraction in corn fields. It is 
true that the English sparrow was found there in numbers averaging 
130 to the square mile, but this was less by 57 than the average of the 
sparrow for the whole state. The blackbird, on the other hand, was more 
abundant in corn fields than its general average (138 and 111 to the 
