. The Canadian field-naturalist. Natural history; Sciences naturelles. Praire Chicken No. 1857 a Index Value 1 Hybrids No. 1171 a 2 No. 1202 O 3 No. 1199 a 4 Sharp-tailed Grouse No. 1353 a 5 Figure 2. Lower flank feathers from a Prairie Chicken, three hybrids and a Sharp-tailed Grouse showing range of variation. Table 3. Classes of patterns on the feathers of the lower flank feathers in male Prairie Chickens, the Manitoulin Island pop- ulation and Sharp-tailed Grouse. Class 1 2 3 4 5 Total Prairie Chickens 174 (100%) 0 0 0 0 174 Manitoulin 1949-1959 11 (33%) 11 (33%) 2 (6%) 2(6 %) 7 (21%) 33 M
. The Canadian field-naturalist. Natural history; Sciences naturelles. Praire Chicken No. 1857 a Index Value 1 Hybrids No. 1171 a 2 No. 1202 O 3 No. 1199 a 4 Sharp-tailed Grouse No. 1353 a 5 Figure 2. Lower flank feathers from a Prairie Chicken, three hybrids and a Sharp-tailed Grouse showing range of variation. Table 3. Classes of patterns on the feathers of the lower flank feathers in male Prairie Chickens, the Manitoulin Island pop- ulation and Sharp-tailed Grouse. Class 1 2 3 4 5 Total Prairie Chickens 174 (100%) 0 0 0 0 174 Manitoulin 1949-1959 11 (33%) 11 (33%) 2 (6%) 2(6 %) 7 (21%) 33 Manitoulin 1960-1963 5 (8%) 3 (4%) 7 (11%) 7 (11%) 42 (66%) 64 Manitoulin 1964-1970 0 4 (7%) 3 (6%) 8 (15%) 38 (72%) 53 Northern Sharp-tailed Grouse 0 0 0 3 (4%) 63 (95%) 66 Table 4. Degree of graduation of the tail of male Prairie Chickens, the Manitoulin population and Northern Sharp-tailed Grouse. Class 1 2 3 4 5 Total Prairie Chickens Manitoulin 144 (99 %) 2 (1%) 0 0 0 146 1949-1959 Manitoulin 39 (67 %) 13 (22%) 4 (7%) 2 (3%) 0 58 1960-1963 Manitoulin 5 (16%) 3 (9%) 13 (40%) 7 (22%) 4 (13%) 32 1964-1970 Northern Sharp-tailed Grouse 0 0 2 0 (11%) 8 (42%) 0 9 (47%) 29 (39%) 0 45 (61%) 19 74". Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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