Vol. 20, No. 6 
Page 3 
Tab.e 2. Number of adult female fox squirrels known to conceive two Utters 
during a single breeding year (December-September). 
Year 
1971 
Number examined 
Number breeding twice 
Percent breeding twice 
12 
4 
33-3 
1972 
1973 
1974 
1975 
1976 
10 
16 
17 
14 
13 
0 
0 
1 
10 
0 
0.0 
0.0 
05.9 
75.7 
0.0 
Habitat Manipulation 
R. L. Westemeier, 
D. R. Vance 
and visited the pra! r?e°chidL bon 9 -”° UPS tot '] nn 9 393 people made reservations 
the season for vis? a Ton bylhe pub ic S 'VV C ° Unty ' We 
on 23 April, for a total of 28 »SJlngS. a " d terminated season 
BellevH?e n Area n collegI, f whea!on e coHeIe na r inSt !?“ tions (Fairview High School, 
College Of DuPage, Southeast?™I 1 ’ f f "’ 1 College, Quincy College, 
University of Illinois Indian* 11 • • Col,e 9 e -» Southern Illinois University, 
College (Indiana “n Ce s? rif ?Zes S s^ ? tate Universi ‘Vr CarlhaL 
represented 55 percent of 1 " ^ f d . M ! ami University of Ohio) 
ornithological societies supplied 19 percent ^thlr 1 * 5 ’ Ten ^ udubo ? or other 
clubs, scout troops, and personnel of * • r 9roups > including women's 
percent „!.i. * > 
Ohio 12 ^percen t? P ancM esse ^numbers ^came f isit 2 rs in '977, Indiana 21 percent, 
Kentucky, and Iowa. from Tennessee p Missouri, Pennsylvania, 
t heir A obIerva r uins US du??ng 9 66 bUndLrni'nl ?“ "“T 6 " pr °J' ect by recordin 9 
for at least 2 hours by one 0 rWe'^j;Sr S O -' 8 "" n9 9round under observation 
Hens began visiting the booming grounds on 24 “ re bl,nds P er morning), 
from 30 March through 12 April? The fir?? of ??' V • peak numbers noted 
was seen on 30 March; a peak in breedinn tl?VL° PUlat,ons recorded this spring 
decline in breeding activity o«ur?ed Bb0Ut 3 Apri ' : and a shab P 
