414 MICHIGAN SURVEY, 1908. 



were also observed on the top of the Greenstone Range near the head 

 of Tobin Harbor (IV, 9). A few tracks were noticed in the small 

 rock clearings in the forest along the trail from camp (V, 3) to 

 Siskowit Lake (V, 4). Near this trail, at the margin of a tamarack 

 swamp (V, 5), tracks were found upon hummocks, and in another 

 swamp (V, 11) in the sedge zone. Such observations suggests that the 

 Lynx roams about everywhere through the swamps and over the ridges. 

 Several years ago, Mr. J. H. Malone secured two lynx near the outlet 

 of Siskowit Lake. 



I secured a lynx skull from a mummified body found hanging on a 

 tree where it had been left by Chas. Preulx along the Desor trail 

 (VII, '04) through the hardwoods. Charles Preulx, Keeper of the 

 Washington Club, has for several years trapped lynx at the head of 

 Washington Harbor. INIost of the specimens have been taken along 

 the Desor trail, not far from the Club House. He uses fish and Hare 

 for bait. During the past summer he kept one alive in a cage for 

 about a month, and then sent it alive to Duluth, Minn. 



In September Max M. Peet often saw the remains of Hare along 

 the Desor trail and the Wendigo road, evidently marking the place 

 where a lynx had taken a meal. He saw two live lynx on the Wendigo 

 road (I, '04) about September 15; and a few days previous to this 

 Chas. Preulx also observed one here. Two were caught in Preulx's 

 traps, at the beginning of the Desor trail, but escaped. 



The Lynx apparently wanders about over much of the island and 

 seems to frequent in particular the rocky ridges, at least the tracks 

 were especially abundant in such places. The Hare and Eed Squirrels 

 furnish an abundance of food for them. Attention has already been 

 called to the close con-elation, noted by MacFarlane, between the 

 abundance of Hare and Lynx in Canada. 



Ecological Notes. — The life history of the Lynx, in outline, is as 

 follows: the breeding season occurs in April and May; in June and 

 July from two to five and occasionally six young are born in a partly 

 blind condition. They are "about the size of a puppy" and are suckled 

 for about two months (MacFarlane, '05, p. 692). Reference has else- 

 where been made to their dependence upon Hares, and to their remark- 

 able periodical fluctuations in abundance. In their native haunts the 

 food, in addition to the Hares, consists of eggs, birds of various kinds, 

 small mammals and young deer. 



Geographic Range. — The Lynx has an extensive range, on the east 

 from New Foundlaud ; Maine ; New York ; Pennsylvania ; Isle Royale, 

 Mich.; Mackenzie Basin to Alaska, and northward nearly to the tree 

 limit. At the extremes of its range this species becomes differentiated 

 into two local forms, while the typical form has an extensive range 

 in the intermediate territory. It has also been found in the Pleistocene 

 deposits of Pennsylvania. 



Miller ('97, p. 44) states that he has no authentic record of the Lynx 

 for Ontario. On account of their abundance on Isle Royale this seems 

 rather remarkable. 



9. Mustelu amvyicana Turton. Eastern Marten. During the past 

 season Chas. Preulx took eleven Martens along the Desor trail (III, 

 '04) among the maples. Hollinger secured one near the creek (II, '04) 



