409 
The record for fields of stubble is quite as irregular as that for 
wheat, quails and meadowlarks dominating in southern Illinois, prairie 
horned larks in central, crows and Lapland longspurs in northern, and 
the last of these in the state as a whole, with prairie horned larks and 
crows next in order. An interesting item is the occurrence in southern 
Illinois of sufficient numbers of song sparrows and bluebirds to bring 
these species into the “more abundant” list. 
NUMBERS PER SQUARE MILE OF THE PRINCIPAL WINTER BIRDS IN STUBBLE 
* { Southern | Central Northern | 
peegles | Illinois __—_Tlinois Titinois. (bn State 
Quail 142 19 3 | 40 
Prairie horned lark | 79 131 31 | 83 
Crow 8 52 119 69 
Meadowlark 158 * 0 33 
English sparrow 0 34 * | 15 
Lapland longspur 0 0 335 127 
Tree sparrow 36 6 13 | 14 
Song sparrow | 24 0 0 5 
Bluebird 24 0 0 5 
Total \ 471 \ 242 | 506 391 
* Present in only trivial numbers. 
On plowed ground, the most striking feature was the dominance 
of the prairie horned lark in central Illinois—211 to the square mile on 
the 325 acres of that habitat. Over four-fifths of these birds were in 
two flocks of 37 and 48 respectively, the remainder occurring in scat- 
tered small numbers. The other important averages were 55 juncos and 
33 English sparrows to the square mile in-central Illinois. Only three 
birds were found on eighteen acres of southern Illinois plowed land, 
while on 223 acres in northern Illinois there were approximately equal 
numbers of prairie horned larks and Lapland longspurs, with about half 
-as many English sparrows. The leading species for the state as a whole 
(really only central and northern Illinois, since the southern acreage of 
plowed ground was very small), were the prairie horned lark with 130 
to the square mile, junco with 32, and English sparrow with 24. 
NUMBERS PER SQUARE MILE OF THE PRINCIPAL WINTER BIRDS ON PLOWED GROUND 
4 Southern Central Northern 
Specs Illinois Illinois Illinois eats 
Prairie horned lark 0 211 23 lie 130 
Crow 0 0 s = 
English sparrow | 0 33 11 | 24 
Lapland longspur 0 S 20 | 10 
Slate-colored junco 0 55 0 32 
Undetermined 0 0 20 8 
Total 0 299 74 204 
* Trivial numbers only. 
