This charming Gull, the _Larus tridactylus_ of scientists, so named from its entirely absent or rudimentary hind toe, is one of the best known, as it is one of the most widely distributed, British species. These remarks are however most applicable to the non-breeding season; for during the nesting time it is rather more local, owing to the conditions under which its young are reared. The Kittiwake very closely resembles the Common Gull in general appearance, but the mantle is paler, the legs and feet are dark brown, and the primaries, or longest feathers of the wings, have broad black tips: it is also a perceptibly smaller bird, the smallest in fact of the typically marine Gulls. Of all the British Gulls the Kittiwake is certainly the most maritime in its habits, and is never known to visit inland districts, unless driven from the coast by storms of exceptional violence. Save in the breeding season it may be met with on all the low-lying coasts, visiting harbours, bays, and fishing villages, and imbuing many a littoral scene with life. The Kittiwake is a much more oceanic bird than the Common Gull, and often wanders immense distances from land in quest of food. It is said that birds of this species have been known to follow vessels across the North Atlantic, but this seems almost incredible—not because the bird is physically unable to perform the feat, but because we can scarcely believe any bird would wander of its own free-will so far from the local centre of its habitat. One of the most striking characteristics of the Kittiwake is its peculiar cry, heard to the best advantage at the nesting places. This note, from which the colloquial name of the species is derived, resembles the syllables _kitty-a-ake_, requiring but little play upon the imagination to render as _get-a-way-ah-get-away_. It is only during the breeding season that this cry is heard to perfection, and after that is over the bird becomes a singularly silent one. The flight of this Gull is light and buoyant, but powerful and often long sustained. The bird may often be observed fishing at no great distance from shore, flying to and fro every now and then, poising and hovering previous to pouncing down upon a fish or other floating object. It is also an adept swimmer, and very frequently sleeps whilst sitting on the waves. The Kittiwake is perhaps more exclusively a fish-feeder than any other British Gull. It seldom searches for food on shore, and does not exhibit those omnivorous tastes that characterise so many of its congeners. It is a persistent follower of fish shoals, especially herrings and sprats, and will remain in the company of fishing fleets for weeks together. A scrap of food thrown from a ship will speedily be seized by one of these birds; whilst a few crustaceans and other marine creatures are taken from time to time.