If the person who sent me her photo of a pair of Tundra swans would write and give me permission to publish the pair in flight (Mar 22, 2015), I would compare Tundra with Trumpeters.
Vicki and I were at Washago on Saturday. There were only 6 Trumpeters - but all were unbanded and adult - no cygnets, no yellow wing tags, not sure about the leg bands.
For being unbanded, the swans were certainly not shy. One came very close to me, so that I felt just a little put upon:
W O B