I live down at York Quay-Central Waterfront. Since around New Years there have been 5 swans each bearing 2 big yellow tags with numbers. They are hanging out with the mute Swans. I first thought they might be Tundra--but they are the same size as the Mute and I cannot see on any of them, a spot near the top of the bill. So I am wondering if, by any chance, they could be trumpters.
Question: am I supposed to report birds with tags? Where does one report them?
Thanks. Laura