I will throw my hat into this ring. Based on the photos I have seen I would
argue for Tundra based on 1) developing yellow spot on the right side of the
bill on one of the birds in Ben's photos, 2) dark black legs (should be
greenish in Trumpeter), 3) vertical border at base of bill (not
Howdy,
I took these photos last weekend at Boyd Ponds SWA with a happy band of mostly
Boulder birders (CFO) who graciously included me. It was my first ever outing
with real birders as I'm a novice (I've only been birding for 5 years). So
-- I'm not sure if these are Tundra Swans or
