. The Canadian field-naturalist. 1993 Kuyt: Whooping Crane in Wood Buffalo National Park records showed it to be the former Red-BWB, a bird banded in 1979 and, because of its large size at banding, presumed to be a male. For seven consecu- tive years, a pair of cranes has nested in a small stand of emergent vegetation in the same 100 x 75 m shallow pond. Each year, from 1984-1989, the pair successfully raised a chick. T. Stehn (personal com- munication) in fall 1989 reported that the pair's win- ter territory was occupied by an unhanded bird and 1985 female BWB-GWG. Although it was first belie
. The Canadian field-naturalist. 1993 Kuyt: Whooping Crane in Wood Buffalo National Park records showed it to be the former Red-BWB, a bird banded in 1979 and, because of its large size at banding, presumed to be a male. For seven consecu- tive years, a pair of cranes has nested in a small stand of emergent vegetation in the same 100 x 75 m shallow pond. Each year, from 1984-1989, the pair successfully raised a chick. T. Stehn (personal com- munication) in fall 1989 reported that the pair's win- ter territory was occupied by an unhanded bird and 1985 female BWB-GWG. Although it was first believed that this was a new pair, the persistent use of the same wintering area (although the pair also used a different area for short periods), and my 11 May 1990 observation of BWB-GWG and her unhanded mate at a new nest in the same small nest- ing pond in CNA SK-3, indicated that the male was likely the same bird as in previous years but that all identifying bands had fallen off. My observations have shown that male cranes return to their previous- ly used nest areas with new breeding partners after the loss of former mates. The pair in CNA SK-3 has occupied an area of about km^ (Figure 4). 5. CNALobstick On 6 August 1981, Fort Smith pilot B. Bourque advised me that early that morning he had seen two Whooping Cranes near Lobstick Creek about 40 km west of Fort Smith. Later that day I confirmed the sighting and noted that one bird was colour-banded RWR-Blue, a bird banded in 1978 and judged to be a. \ LEGEND 0 Composite nesting area ^. 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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