. The Canadian field-naturalist. 364 The Canadian Field-Naturalist Vol. 100 Ontario. .-^ , Cockburn Is. Drummond Is. 'A,.,,^ 7 —I r— 0 10 20 30 40 km Figure 1. The Whitefish Bay - St. Mary's River Study Area on the Michigan-Ontario border. Asterisks and the heavy dashed hne denote the location of recent Wolf and Wolf track observations discussed in the text. The dotted line indicates the international boundary. (dry-weather and trails), by township (usually 80- 120 km^ each) in about 11 000 km^ in Ontario and the UP (Figure 2) from provincial maps (1970, 1977 and 1978, scale = 1:126 720) and t
. The Canadian field-naturalist. 364 The Canadian Field-Naturalist Vol. 100 Ontario. .-^ , Cockburn Is. Drummond Is. 'A,.,,^ 7 —I r— 0 10 20 30 40 km Figure 1. The Whitefish Bay - St. Mary's River Study Area on the Michigan-Ontario border. Asterisks and the heavy dashed hne denote the location of recent Wolf and Wolf track observations discussed in the text. The dotted line indicates the international boundary. (dry-weather and trails), by township (usually 80- 120 km^ each) in about 11 000 km^ in Ontario and the UP (Figure 2) from provincial maps (1970, 1977 and 1978, scale = 1:126 720) and the Chippewa and Mackinac County atlas and plat books (1977, scale - 1:56 320). Areas within the city limits of Sault Ste. Marie, Ontario and Michigan were excluded from these measurements. Results The most recent Wolf specimens from the eastern UP were killed in 1967 on St. Martin's Bay, in 1968 on the south end of Whitefish Bay, and in 1972 near Pickford (Figure 1) (Hendrickson et al. 1975). Since 1968, only nine confirmed sightings of Wolves have been made in Michigan within 70 km of Ontario (MDNR files). Interviews with OMNR personnel, trappers, and local residents indicated that during winter 1980-81, about seven packs or pairs totalling perhaps 20-25 Wolves, as well as several lone Wolves, resided within 25-50 km of the Whitefish Bay-St. Mary's River shoreUne (Figure 2). Each winter, 5 to 10 Wolves are trapped in the area (OMNR files). During the fall seasons of 1978 to 1981, E. Mitchell (local trapper, personal communication) trapped one, two, three, and one Wolf, respectively, on Cockburn Island before freeze-up, indicating that a pack lived there also. Interviewed persons indicated that no Wolves permanently resided in the settled areas just north of the St. Mary's River, the North Channel, and Sault Ste. Marie, Ontario, and only single Wolves or an occasional pack travelled in the area just east of Whitefish Bay. These observations confirmed results of our aerial a
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