Swans in the Air(waves)

Yesterday I posted photos from my weekend Frank/Namaka Lake excursion, including both Alberta species of swan (Trumpeter and Tundra).  The same day, I heard Brian Keating of the Calgary Zoo talking about swans on the radio!  It's a great little piece discussing the history of swans in Alberta, current threats to their population, and their ecology.  You can listen to the piece on the CBC website here: http://www.cbc.ca/homestretch/columnists/wildlife/2013/04/15/swans/

Tundra Swans, Cygnus columbianus, in a slough near Frank Lake