Would anybody (esp. from US) like to comment on the ID of an orange-billed tern seen recently in Spain?
Video here (http://es.youtube.com/watch?v=1mvjwkzqnEk) shows it displaying, and it looks a size up from Sandwich Tern.
Images here (http://www.rarebirdspain.net/arbsr000.htm) are poor and you will need to scroll down to see them.
This seems to one of a run of 'odd' orange-billed terns in Spain, with video of another here (http://www.youtube.com/watch?v=0WJQ0oEEsic). Images of another here shows a more yellow-hued bill (http://www.birdingalbufera.es/files/...buferaTern.pdf).
It is hard to reconcile these birds with Lesser Crested Terns, but equally it is a big step to be categorical about their identity. I have my own feelings, but would like to hear from others with more experience.