Melissa said: “For a moment I thought I was looking at a grumpy fish face. “But then I realised I was looking at the back of Least Tern, and that there were two tiny chicks nestled under their mama’s wings, looking in my direction.

“I had never seen that before, and I marvelled at the perfect safety, warmth, and sweetness of these newly-hatched chicks’ refuge.

“If you zoom you can see that they still have their little white ‘egg teeth’, the sharp protuberance on the tip of their beaks that helps them chip out of the egg. Many species of birds and reptiles have these as well. “Egg teeth fall off after a couple of days after the young hatch.”