Even with it in silhouette, the majority of readers would surely recognise the dagger-like bill, flat crown with crest, fairly elongated wings and shortish tarsi of last month's mystery bird (plate 254, reproduced here in black-and-white) as a tern (Sternidae). With the original photograph in colour, the elimination process is further hastened by noting the orange bill, white forehead and blac

...

Stay at the forefront of British birding by taking out a subscription to British Birds.

Subscribe Now