Analysis of Growth of the Red-Tailed Hawk
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Citation:The Ohio Journal of Science. v83, n1 (March, 1983), 13-19
Analysis of anatomical measurements of 14 red-tailed hawks, Buteo jamaicensis, was characterized by positive allometry in the increase in body weight. Intraspecific variation up to 22% was observed in the cumulative increase in body weight. Females were statistically larger than males in body weight and length of seventh primary, but not in length of tarsus, third toe, and culmen. No yearly statistical differences were found in the growth rates. Weekly growth gains show the culmen, toes and tarsus develop during the first 2 weeks while growth gains in body weight and primaries are fastest during weeks 3 and 4, respectively. Body weight was a good indicator of age up to the 24th day and length of the seventh primary was the best indicator of age after 24 days.
Author Institution: Department of Zoology, Miami University
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