Poreupine - Bell River Flats (¥ukon} 
Ducks per aquare mile: 18 
Canada #eese par square mile: 4 
Percent Gamposition 
scoters 51 
Scaup 44 
Fintail = 
Golden-eye 2 
Old-equaw 1 
Upland Tundra (West of Coppermine, N. W. T,) 
Tucka per equare mile: 0.8 
Swan per aquare mile: 0.14 
Percent Composition 
Old-squawyw ai 
Scoterg 40 
Pre-Cambrian Barrens (N, W. T.} 
Ducke per equare mile: O.14 
Fercent Composition 
Old-Squaw 100 
(Hetween Bathurst Inlet and Perry River, two flocks of Canada geese 
of LO and 25 were seen within the transect and another flock of 25 
was geen outside the strip. Since these were obviously non-breeders, 
they have not been included as a segment of the breeding population.) 
Chronology of the Nesting Seagon 
When we arrived over the Athebaska Delta on June 12 migration was 
completed, nesting wae apparently well under way, and male mallarda and 
pintaila had atarted te gather. In our flight over the area we cbheerved 
eleht broode of downy young ducksa. On June 15 we rescued elx downy pintalilsa 
fron ravens which had already killed two on the main street of Yellowknife, 
ALW.T, Proceeding north from Yellowknife we saw no more broode cof ducke 
during the remainder of the gummer, 
Snow geese and black brant were incubating on July 1 on the islanda 
off the MacKenzie Delta; and on July &@ at the Anderson River Delta. On July 26 
an old-squaw was still incubating near the mouth*of Ferry River, 
Weather and Water Conditiong 
We were informed that an unusually early season was é@xperienced as 
far north as Great Slave Lake, and an unusually late season beyond that point. 
Certainly the conditions of the Athabaska-Lake Claire mareshea would indicate 
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