My first time identifying Trumpeter Swans was at the Dry Lake Area south of Nampa with my trusty bird-brained father-in-law. There was snow on the ground and the fog over the lake came and went. There were lots of swans on the lake that morning so it was a good opportunity to learn the differences between Tundra Swans and Trumpeter Swans. There are anecdotal difference in how they act and group together, but the really only good way to tell them apart is how the shape of their bills intersect with their heads.
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