Vol• 19, No. 7 
Page 3 
diet Ihey^ou r M n e a t h ?n th a r d a S v Ui f rrelS soybeans a " d how >«* of a soybean 
fed soybe^r or 3^0 s a in ;te 0 J U a r nu^v ,Ve A n U i t t fen,a,e /^ 
somewhat reluctant to es tto Lb^« i. > l t °" e ° f the s< > uirre ' s were 
four squirrels ^re eatinq them V However ^ e " d ° f the third da V a " 
of the four squirrels onIhe soChe^-!,’ average da, iy energy intake 
9.1 percent, 27.5 percent, and 61.0 percenTof [he^r'I' Ve ' Y ’ ° n ' y 4,6 percent > 
on a balanced diet., P f f the,r January average intake 
Once squir?eis r ilarn°to a earso!be S and S ° me may Sat them "* re than others - 
an important food source for sau^relsTa® °l unh f" vested soybeans may be 
winter and early sprinTmonths^f f ! and .° u thar wildlife during the late 
winter weather. year with low food production and severe 
Responses of P rairie Chickens .to Habitat Manipulation 
R. L. Westemeier, 
D. R. Vance 
67 percen t-!and e wa S s ^ t P I ess‘ than ' ^percent 7 Sanctuary grasslands averaged 
period of 1963-72 on the Bogota Study P Area IjrTl Y * ar ~ f ° r tha ><>-year 
primarily) reduced nest success to ti By contrast, mammalian predation 
a s B?UST,~ “r sxs-rrjys. 
i ss-j?sra*s..-s^*r: sjx. 
quent use of th^sanctuaNes'and^^^lth ° f mamma,ian predators making fre- 
an improvement in sanctuary utilization hatch 0 "^ 01 measures can demonstrate 
limited trapping efforts were o success, or chick survival, 
during the past 4 years Most • d ln selected portions of the sanctuaries 
Conibear-type traps were tried 1 year'll^) ^jra' ^ ,ive tra P s i however, 
to April and May, the most important months of the nL+ti™* pnmar i ,y Umited 
chickens. Various baits were used inri^- l th ~ ? t,n9 season for prairie 
road-ki 1 led rabbits, peanut butter, andt^otT^ Ush > 
resulted in P 46 captures^f'at feast potent 3 t0tal ° f ?' 455 tra P- n ' 9 hts 
of the captures were opossums 11 percent Hn °?n eaters *" Fifty-three percent 
cats, and 4 percent skunks. Similarly in Mar* P ercent raccoons, 9 percent 
1974-76, 762 trap-nights JisutK'fe capture™ 3 yearS 
16 percent raccoons, 16 percent cats L n* 58 P ercent were opossums, 
capture have decreased steadily from '175 o LTt"- Tra P“ ni 9 h ts per 
200.0 to 34.3 in Marion County 7 Th^pJ’! 35 ‘ 7 ,n Jas P er County and from 
ficiency in trapping ^n inc^J* d3ta suggest either an increased pro¬ 
counties. rapping or tin increasing mammal population, or both, in both ° 
