. The Canadian field-naturalist. 328 The Canadian Field-Naturalist Vol. 114 the Letete ferry wharf, of Head Harbour Passage on 30 December 1998 and 27 January 1999, with the University of New Brunswick research vessel Mary O (Figure 1). Each survey began at 09:30 and lasted for 2 hours 10 minutes. Ship speed was approximately 6 knots; bird counts were by naked eye extending 360° around the vessel, using binocu- lars for species confirmation. The first survey (by F. H.) revealed 6030 Bonaparte's Gulls, which we consider an underestimate due to bad weather (rain and dense snow) during the first
. The Canadian field-naturalist. 328 The Canadian Field-Naturalist Vol. 114 the Letete ferry wharf, of Head Harbour Passage on 30 December 1998 and 27 January 1999, with the University of New Brunswick research vessel Mary O (Figure 1). Each survey began at 09:30 and lasted for 2 hours 10 minutes. Ship speed was approximately 6 knots; bird counts were by naked eye extending 360° around the vessel, using binocu- lars for species confirmation. The first survey (by F. H.) revealed 6030 Bonaparte's Gulls, which we consider an underestimate due to bad weather (rain and dense snow) during the first hour of the survey. Most of the gulls were in two distinct flocks (Figure 1), both surface-feeding on the well-known eddies and gyres; one, of about 1500 birds between Wilson's Beach and East Quoddy Head, and the other, of about 4400 birds south of Deer Island (Deer Island Point). In addition, 130 individuals were travelling in small groups towards or from these two flocks. Birds were not specifically scanned for age classes, but only adult birds were seen. Besides small numbers of other waterbirds, 3202 Black-legged Kittiwakes (Rissa tridactyla) Passama quoddy Bay <f New Brunswick, Canada saint. Gulf of Maine ^^'""'f Nova Scotia, Canada. 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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