![](http://www.alamy.com/thumbs/6/0F92FE43-4B53-4CD0-9930-4C2B39C85042/BF4KJH.jpg)
Common tern Sterna hirundo sitting on Nature Reserve "No Entry" sign, Martham Broad, Norfolk.
Size: 4700px × 3704px
Photo credit: © Bob Gibbons / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: avian, bird, birds, birdwatching, broad, broads, common, entry, hirundo, humor, humorous, humour, humourous, joke, martham, national, nature, nnr, norfolk, ornithology, perch, perched, perching, reserve, sign, sitting, sterna, tern