Mystery Bird Quiz Week 4

Common Tern

 

Last weeks mystery bird was a Common Tern which I saw at RSPB Saltholme earlier this year. A big well done to Rob Stokes, Mark Lucas, Jason Ward and Phil Gatley. Unlucky to those who didn't get the right answer but thanks for having ago.

 

Here is this weeks mystery bird.

What is it?

 

thanks for having a go