File:The Canadian field-naturalist (1967) (20333240709).jpg

Title: The Canadian field-naturalist
Identifier: canadianfieldnat1967otta (find matches)
Year: 1967 (1960s)
Authors: Ottawa Field-Naturalists' Club
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Publisher: Ottawa, Ottawa Field-Naturalists' Club
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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1967 Holroyd: Rocky Mountain Goats
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Figure 2. Mt. Wardle showing southern exposure of goat range. Although goats are usually thought of as being all white, this is not always the case. Many young goats have some dark or black hair along the dorsal line of the tail and back, around the eyes and the hair line of the hooves. The dark hair in the tail is often noticeable enough to be seen from some distance. This dark hair seems to lessen with age and adult goats have little if any of it. Seton (1927) reported that many mountain goat hides at the American Museum of Natural History contained a number of coarse brown hairs along the back, rump and tail. Brandborg (1955) mentioned that a day old kid and a yearling in Idaho had dark hair along their backs and tails. Conversely, Casebeer et al (1950) stated that during a study of mountain goats in Montana, no such colouration was found. Horns It was possible to measure the horns of five goats from Mount Wardle. The horn of a male kid about 7 months old, which was killed in an avalanche in January, 1962, measured IVz inches. Horns of a male kid about 6 months old, which I collected on November 21, 1963, measured 1% inches. This kid had been sick for some time, which might have influenced horn growth. The horns of two billies which died after their fifth growing season were 8 V^ and 9 inches long. A nanny horn of 9 growth seasons measured 9/4 inches. The last three measurements were of horns picked up on the range, causes of death were unknown. Ages were determined from annual growth rings on the horns, the nearest ring to the tip marking the end of the second growing season. There is no growth ring after the first growth season (Brandborg, 1955).

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