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1“... for Alaska or Alberta. Cygnet production was 19 young by August 1980 and 26 young by July 1981. Band returns...”
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2by Stephen R. Johnson“...bands were put on 1714 of the leg-banded adults and subadults. During the period from September...”
Published 1995
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3“...). Banding and migration data suggest that part of the population that nests north of the Alaska Range may...”
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4by Stephen R. Johnson“... banded birds was 4.7 ± 2.9 km (mean ± s.d.). After development commenced during winter 1984 –85...”
Published 1998
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5by Charles H. Racine“... la vtgetation de la toundra. Neuf bandes permanentes au transect, mesurant 10 m X 1 m, furent...”
Published 1981
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