The Status and Distribution of Trumpeter Swans (Cygnus buccinator) in the Yukon
ABSTRACT. The presence of a breeding population of Trumpeter Swans (Cygnus buccinator) in the Yukon is established from previous summer records of swans and by data from extensive aerial surveys. The population is estimated to number about 50 pairs, with at least 32 pairs found near Toobally Lakes i...
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Format: | Text |
Language: | English |
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.581.427 http://pubs.aina.ucalgary.ca/arctic/Arctic36-1-76.pdf |