Subject: Ducks
[Martha (Bark) of New Bedford, Mass., mastered by James E. Stanton, keeper unknown, on voyage 5 October 1872 – 20 November 1874],
A comparative study of reproductive potential in parkland- and arctic-nesting mallards and pintails (Anatidae)
Date: 1975-01-01
Brathay east Greenland goose study : preliminary report, Jameson Land, 20 June – 1 August 1983
Date: 1983-01-01
Preliminary report, 5th May – 20th August, 1979
The 8th Trumpeter Swan Society Conference, September 9-11, 1982
Date: 1982-01-01
The brant of the western Queen Elizabeth Islands, N.W.T
Date: 1979-01-01
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