. The Canadian field-naturalist. 1975 Thompson: Waterfowl of Chick Lake, 263. Figure 1. The study area, Chick Lake, Northwest Territories. River flows into the lake. Major submerged species included Potomogeton richardsoni, P. vaginatus, P. joliosus, and Hippuris vulgaris fluviatilis. Methods The study was conducted from 26 May to 23 June 1973. Most of the breeding waterfowl, with the exception of Surf and White-winged Scoters, were observed at the east end of the lake. Most effort was expended in this area. Censusing followed Dzubin's (1969) sug- gestions where possible, although count
. The Canadian field-naturalist. 1975 Thompson: Waterfowl of Chick Lake, 263. Figure 1. The study area, Chick Lake, Northwest Territories. River flows into the lake. Major submerged species included Potomogeton richardsoni, P. vaginatus, P. joliosus, and Hippuris vulgaris fluviatilis. Methods The study was conducted from 26 May to 23 June 1973. Most of the breeding waterfowl, with the exception of Surf and White-winged Scoters, were observed at the east end of the lake. Most effort was expended in this area. Censusing followed Dzubin's (1969) sug- gestions where possible, although counts could not be conducted in the morning when other work had priority. Surveys from a motorized rubber boat were made on 27 May, 4 June, and 20 June, between 2200 and 0100 hours MOST (Mountain Daylight Saving Time). Ap- proximately 12 miles (19 km) of shoreline was censused, including V2 mile of the Don- nelly River, at the east end of the lake. Num- of the lake were estimated from counts during other work. Waterfowl were observed at all bers of breeding waterfowl on the remainder. 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
Size: 1451px × 1721px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorottawafieldnaturalistsclub, bookcentury1900, bookcolle
