. The Canadian field-naturalist. 1998 Notes 539 Triplets in Mountain Goats, Oreamnos americanus Manfred Hoefs' and Uli Nowlan^ 'Yukon Fish and Wildlife Branch, Box 2703, Whitehorse. Yukon YIA 2C6, Canada -Yukon Game Farm, Site 19, Compound 11, , Whitehorse, Yukon, YIA 5A5, Canada Hoefs, Manfred, and Uli Nowlan. 1998. Triplets in Mountain Goats, Oreamnos americanus. Canadian Field-Naturalist 112(3): 539-540. On 4 June 1997 a set of triplets was born in a captive herd of Mountain Goats {Oreamnos americanus). We attributed this rare event to supplemental feed, which also resulted in early se
. The Canadian field-naturalist. 1998 Notes 539 Triplets in Mountain Goats, Oreamnos americanus Manfred Hoefs' and Uli Nowlan^ 'Yukon Fish and Wildlife Branch, Box 2703, Whitehorse. Yukon YIA 2C6, Canada -Yukon Game Farm, Site 19, Compound 11, , Whitehorse, Yukon, YIA 5A5, Canada Hoefs, Manfred, and Uli Nowlan. 1998. Triplets in Mountain Goats, Oreamnos americanus. Canadian Field-Naturalist 112(3): 539-540. On 4 June 1997 a set of triplets was born in a captive herd of Mountain Goats {Oreamnos americanus). We attributed this rare event to supplemental feed, which also resulted in early sexual maturity, larger body sizes, and a secondary sex ratio distorted toward females. Key Words: Mountain Goats, Oreamnos americanus, productivity, triplets, food quality. Mountain Goats {Oreamnos americanus) typically give birth to single kids, but twinning has been observed, particularly in populations that have been introduced into good quality habitats (Chadwick 1983; Hutchins 1984; Lentfer 1955; Wigal and Coggins 1982). Only one documentation of triplets, in the Crazy Mountains of Montana, has been report- ed (Lentfer 1955). However, this report leaves room for doubt, and we agree with Chadwick's (1983) assessment of it, when he writes: "In the early 1950's Jack Lentfer conducted an impor- tant study of goats transplanted into Montana's Crazy Mountains. He not only found twinning to be quite com- mon but reported several instances of triplets, an unheard-of occurrence in Oreamnos before or since. Those Crazy Mountain Goats were plainly flourishing in this nonnative range. Yet since I have seen two to as many as five kids playing together and tagging along behind a single nanny for up to half an hour before returning to their own mother nearby, and since many of Lentfer's observations were necessarily brief parts of overall population censuses, I've never been absolutely convinced about these ; On 4 June 1997 a set of triplets was born at the Yukon Game F
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