One of the most confusing terms in Lewis and Clark's lexicon of quadrupeds was the adjective long-tailed—or longtailed, or long tailed. In the preamble to his description of the mule deer, Lewis reported that on that day, May 10, 1805, the hunters had killed "two Mule deer" and "one common fallow or longtailed deer," in that case implying that "common fallow" and "longtailed" were synonyms. Yet on April 8, 1806, he recorded that the "common longtailed fallow deer"—the only time he used that name—were the most abundant species along the Columbia River east of Portland, Oregon. At the Three Forks on July 29, 1805, he compounded the ambiguity: "we have killed no mule deer since we lay here, they are all of the longtailed red deer which appear qu[i]te as large as those of the United States," the latter obviously a reference to the Virginia whitetail.
By mid-century, John Bachman and his partner, John Audubon, were still ambivalent about the true identity of the long-tailed deer.
In its general appearance this Deer greatly resembles the European roebuck, and seems to be formed for bounding along in the light a graceful manner of that animal. The species has been considered of doubtful authenticity, owing to the various lengths of tail exhibited by the common deer, many specimens of which we collected near the Rocky Mountains, not differing from C. Virginianus in any other particular, but with long tail.
In fact, Bachman asserted,
LEWIS and CLARK considered it the same animal as the common deer, with the exception of the length of the tail. They found it inhabiting "the Rocky Mountains, in the neighbourhood of the Chopunnish, and about the Columbia, and down the river as low as where the tide-water commences." These travelers in another passage observe that "the common Fallow Deer with long tails" (our present species), though very poor, are better than the black-tailed fallow deer of the coast, from which they differ materially....
We have after some hesitation admitted this species, and as much has been said (although but little learned) of the western Long-tailed Deer since the days of LEWIS and CLARK, it is desirable that the species should be carefully investigated.1
"Drawn from Nature by J. W. Audubon; On Stone by Wm. E. Hitchcock; Lithograph Printed & Colored by J. T. Bowen, Philadelphia"
Its gait," wrote Bachman, "is two ambling steps and a bound exceeding double the distance of the steps, which mode it does not depart from even when closely pursued. In running, the tail is erect, wagging from side to side, and from its unusual length is the most remarkable feature about the animal." It may have been the gait that was the basis of the common name Edward Umfreville of the Hudson's Bay Company used in 1784—"long-tailed jumping deer."
Some zoologists still disagree whether the long-tailed version of the common deer Lewis and Clark saw on the High Plains and in the foothills of the Rockies really is, or is not, a subspecies of the whitetail of Virginia. The splitters say yes, and call it Odocoelius virginianus dacotensis—"of Dakota," the eastern limit of its range. The lumpers say no—or "yes, but the differences are insignificant."
1. Audubon and Bachman, 2:332.
2. Ibid. John Kirk Townsend was born in 1809 and died in 1851. Townsend re-collected several of the birds found originally by Lewis and Clark, and found several more that were new. From Fort Vancouver, in 1835, Townsend shipped hundreds of bird and animal specimens to the Academy of Natural Sciences in Philadelphia. The Academy had provided the ornithologist with a hundred dollars for his travels; today his specimens are priceless. —James Reveal
Funded in part by a grant from the Idaho Governor's Lewis and Clark Trail Committee.