. The Canadian field-naturalist. 46 The Canadian Field-Naturalist Vol. 94 Table 1 (continued) Year Date No. Location Source 1972 Oct. Duncan, Tatum 1973 1972 Oct. 13 Mount Finlayson, Tatum 1973 1972 Oct. 14 3 Mount Prevost, Tatum 1973 1972 Oct. 29 Grouse Mountain Campbell et al. 1974 1972 Nov. 5 2 Greater Victoria, Tatum 1973 1972 Nov. 10 Pitt Meadows Campbell et al. 1974 1972 Nov. 12 North Vancouver Campbell et al. 1974 1974 Aug. 13 Victoria, Crowell andNehls 1975 1975 Oct. Vancouver Crowell and Nehls 1976 1975 Oct. 18 Victoria, Williams 1975 1975 Dec. 20 Vancouv
. The Canadian field-naturalist. 46 The Canadian Field-Naturalist Vol. 94 Table 1 (continued) Year Date No. Location Source 1972 Oct. Duncan, Tatum 1973 1972 Oct. 13 Mount Finlayson, Tatum 1973 1972 Oct. 14 3 Mount Prevost, Tatum 1973 1972 Oct. 29 Grouse Mountain Campbell et al. 1974 1972 Nov. 5 2 Greater Victoria, Tatum 1973 1972 Nov. 10 Pitt Meadows Campbell et al. 1974 1972 Nov. 12 North Vancouver Campbell et al. 1974 1974 Aug. 13 Victoria, Crowell andNehls 1975 1975 Oct. Vancouver Crowell and Nehls 1976 1975 Oct. 18 Victoria, Williams 1975 1975 Dec. 20 Vancouver YUKON*** Heilbrun 1976 1912 7 Robinson Rand 1946 1943 Aug. 21 Rancheria River Rand 1946 1949 Aug. 21 Robinson Godfrey 1951 1970 May 3 Sheep Mountain Hoefs 1973 1971 Apr. 30 Sheep Mountain Hoefs 1973 1975 July 10 Goatherd Mountain Neily 1976 ?Supplemented by V. Humphreys, personal communication. **S. Pearse saw several birds that year in the area. ***Status in the Yukon unknown. 1969, when only one nutcracker was reported outside its normal range in Canada (in Alberta), several occurred both east and west of the mountains in the northern United States, with some as far east as Min- nesota (Bagg 1970). In 1972 a more widespread movement of nutcrackers occurred in Canada, Alaska. MAMJ J ASONDJ F month Figure 2. Monthly distribution of extralimital occurrences of Clark's Nutcracker in Canada between 1904 and 1976. The number to the left of the diagonal line above the columns is the total number of birds and the number to the right of the diagonal line is the mean flock size. (Gibson and Byrd 1973), and several other states (Able 1973). In November 1972 five records in Minne- sota (Green and Janssen 1975) and two in Ontario were all along the same S W NE line. In the autumn of 1976 extralimital occurrences were restricted to south- ern Alberta (Fisher 1979). In Figure 3 synchrony of extralimital occurrences in different provinces is illustrated from 1960 to 1976. Peak numbers of
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