Eccleston Mere 13:00-17:30

The American Black Tern was present again from 4pm onwards, now accompanied by a Eurasian Black Tern for comparison. I'm pretty sure that the bird flying onto the bouy is the American Black Tern, but all of the other photos are of its new companion. If you compare these photos with those from earlier in the week, you can notice several differences, but most notably the pure white flanks and underwing of the Eurasian bird. Also this afternoon 1 Peregrine, Grey Wagtail, 2 Buzzards and 1 Mandarin (all 11 were present early morning but not seen by me.).