Terns Spain August - 2 (1 Viewer)

[njlarsen]

Next set. As far as I can see, both birds have red bill w black tip = Common Tern?
Niels

 

[johnallcock]

The bird on the left is a juvenile, the one on the right is an adult. Both look like Common Terns to me. Note that the red bill with black tip occurs only on breeding adults, so is not relevant to the juvenile, but juvenile Common does have a paler base to the bill consistent with what we see here.

 

[lou salomon]

They are definitely Common Terns, juvenile and adult, bill and head shape, dark outer primaries in the adult, warm buff colours in the juvenile with much red in bill (like John already pointed out).

 

[Jinac]

Agreed, so if you can compare the height of these ones and that on the first photo, you should know if it's a little or a common

 

[njlarsen]

Agreed, so if you can compare the height of these ones and that on the first photo, you should know if it's a little or a common

Thank you all. This and the bird in #1 were at different distances so not a direct comparison.
Niels