1.   Being strongly territorial they have less need for this when compared with birds breeding in tightly packed colonies.

2.   The birds breed in northern latitudes.

3.   There is not a chance of going unobtrusively through any area where these birds are breeding!

4.   What other birds breed on Spurn?

5.   Just because a bird does not breed one year, it does not follow that it will fail the next.

6.   Birds are breeding out of control, destroying land and threatening millions of lives.