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Bureau of Biological Survey
Canada
Field notes
Ornithology
10
United States
10
Diary
8
Mackenzie
6
Fort Chipewyan
4
Fort Resolution
4
Fort Simpson
4
Hudson Bay
4
Lac Winnipeg
4
Norway House
4
Selkirk
4
Fort Good Hope
2
Fort Smith
2
Grand Rapids
2
House River
2
Marian Lake
2
North Nahanni
2
Petitot
2
York Factory
2
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