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<br /> • Table 6 <br />Growth rates of jwem7e Amerian Kestrels in Colorado <br />Idaho <br />and North Dakota d <br />i <br />1988 <br /> . , <br />, ur <br />ng <br />. <br /> <br /> <br />I.oca[ioac 1a-15 Ag{~c lday <br />16-20 s oldl <br />zi-25 <br />26.28 <br /> iNAL S <br /> Colorado - DNM 79A0±37.00 10950±3.87 110.7812.60 <br /> (2)° (12) (18) <br />r Colorado -Front 86.00 9733±ll.79 94.9314.43 120.00±2.00 <br /> (1) (3) (14) (2) <br /> Idaho 93.00±6.01 108.73±515 113.0813.45 1165513.22 <br /> (4) (11) (12) (11) <br /> North Dakota 865513.43 988613.14 1191711.80 111.40±2.15 <br /> (11) (14) (15) (10) <br /> <br />Coorado - DNM - ~~ <br />113.00±4.12 ~ <br />1098214.22 <br />118.29±3.02 <br /> (5) (11) (14) <br /> Colorado -Front - 11130±150 103.14±4.68 1223311.20 <br /> (2) (~ (3) <br /> Idaho 892011.46 113.67±431 117301532 124.89±2.68 <br /> (~ (~) (10) (18) <br /> North Dakota 96.00 110.0013.10 124.4013.09 133.00 <br /> (1) (9) (10) (1) <br /> Number m parenthetic h sample sift <br /> <br /> North Dakota <br />w Commencement of Kestrel egg laying for N orth Dakota was <br /> similar to Idaho and the Colorado - DNM area (Table 3). Nesting <br /> productivity (Table 4) was poor in North Dako ta and significantly <br /> lower than the other 3 study areas in all par ameters except <br /> clutch size. These differences were noticed as early as hatching <br /> when the percent of nests hatching at least 1 egg was 22 percent <br /> lower than the next higher average (Table 3). Adults accounted <br /> for 37 birds banded (27 females and 10 males) and 54 young (18 <br /> females, 30 males and 6 of unknown sex) were banded. <br /> Food remains we re visually checked at 11 Restrel nests with <br /> insects (beetles and grasshoppers) being found in 93$ (Table 5). <br /> The insect proportio n of the contents ranged from 5 to 100$. <br /> 8 <br />