. Animal Life and the World of Nature; A magazine of Natural History. 308 Animal Life The Common Gnll (Larus canus) is also not quite properly named, for with The QuUm°n us at a11 events lt certainly is not so common as the herring gull (L. argentatus) or the laughing gull (L. ridibutidits), to which last species most of our winter visitors to London belong. The common gull is one of the smaller species, being little bigger than the laughing gull, although more stoutly made. In its pure grey and white plumage it much resembles the similar-sized kittiwake (Bissa tridactyla), but the latter may
. Animal Life and the World of Nature; A magazine of Natural History. 308 Animal Life The Common Gnll (Larus canus) is also not quite properly named, for with The QuUm°n us at a11 events lt certainly is not so common as the herring gull (L. argentatus) or the laughing gull (L. ridibutidits), to which last species most of our winter visitors to London belong. The common gull is one of the smaller species, being little bigger than the laughing gull, although more stoutly made. In its pure grey and white plumage it much resembles the similar-sized kittiwake (Bissa tridactyla), but the latter may be distinguished when in adult plumage by its blackish feet, the feet of the common gull being pale greenish in colour. The young birds of the t w o species are very differ- ent, young kittiwakes being grey and white w i t It. a black band on each wing and at the tip of the tail, while young com- mon gulls are of a mottled drab, and look much like small editions of the young herring gull. Unlike the kittiwake, which is essentially a sea-bird and a cliff-breeder, the common gull breeds on low shores, and is especially addicted to coming inland. The Thick-Knees or Stone-Curlews form a small family of birds closely T TeiifcktKneean allied to the Pavers, which they nearly resemble in shape, though the}' are very much larger as a rule. They may, however, be easily distinguished by having the corner of the mouth extending. Photos by IP". WHITE-HEADED SEA-EAGLE. to the eye, while in the true plovers it terminates below the forehead. They are night birds and have large yellow eyes, whence in India they are called goggle- eyed plovers. The present bird (Burhiniis grallarius) is the largest of the family in linear measurement, though in bulk and stoutness of build it is inferior to the great- billed stone-plovers (JEsacus) of India and Australia. These great plovers do well in captivity, and the present kind and the common Indian great-billed species {JEsacus rectirvirostris) exhib
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