Common tern
The elegant silvery-grey and white Common terns are nicknamed 'sea-swallows', because of their long tails. They breed in noisy colonies, flying back and forth bringing fish to their spouses and young. I have spend quite some hours watching their graceful behaviour praying above the water and suddenly diving in to catch a small fish. At the end of the breeding season, when the young are well fed, they fly back to Africa to overwinter.