CURLEW.
This species, (Numenius arquata), is not only the largest Limicoline bird that frequents the coast, but also one of the best known. There are few parts of the shore during autumn and winter where an odd Curlew cannot be found, whilst in some localities it may be classed as absolutely common. The Curlew is another of those species that present little difference between summer and winter plumage, and yet the haunts it selects in summer differ very considerably from those it seeks in winter. It is a resident in the British Islands, but its numbers are very considerably increased in autumn, by migrants from more northern latitudes. It may be found, as previously inferred, on almost all parts of the shore, but such beaches where wide expanses of sand, mud, and broken rocks occur, are specially preferred—as are also salt-marshes and wet meadows close to the sea. Of all wild fowl the Curlew is one of the wariest, never allowing a close approach unless stalked with the greatest care, or surprised in some unusual way, which does not often happen. In some districts where little beach is exposed during high-water, the Curlews will retire some distance inland, but return with remarkable punctuality as soon as the tide begins to ebb. Shingle banks and islands are also often visited between tides. Curlews when feeding are very restless birds, running and walking about the beach, seemingly in a very careless and unsuspecting manner, but sentinels are ever on the watch to sound the warning note, which sends the big long-billed speckled birds hurrying away to safer haunts. The Curlew feeds both by day and by night; and its wild somewhat mournful note, shrill and far-sounding, curlee, cur-lee, may repeatedly be heard during darkness. The flight of this bird is both rapid and well sustained. Gätke, on evidence which seems absolutely conclusive, estimates its speed on certain occasions to be not less than a mile a minute, and possibly very much more! Although the Curlew repeatedly wades, it is not known to swim under normal circumstances, but has occasionally been seen to perch in a tree. All through the autumn and winter the Curlew continues gregarious. It migrates in vast flocks, and frequently associates with other wild fowl, although it may be that these other and smaller species seek its company to profit by its extraordinary vigilance. Sand-worms, crustaceans, and molluscs form its principal food whilst living on the coast, but in summer, at its breeding-grounds, worms, grubs, insects, ground fruits, and berries are eaten. The European form of the Curlew is pretty generally distributed over the western half of the Palæarctic region, and in winter is found throughout Africa.
The Curlew begins to leave the coast for more or less inland haunts in March, scattering over most of our swampy moorlands and rough higher grounds to breed. The eggs are laid during April and May. The nest is invariably made upon the ground, and consists merely of a shallow cavity, lined with a few bits of withered herbage or dead leaves. Numbers of pairs often nest within a comparatively small area of suitable ground, and should one pair be disturbed, the entire community is soon thrown into a state of alarm. The four eggs of the Curlew vary from olive-green to buff, blotched and spotted with olive-brown and pale gray. The Curlew begins to wander coastwards as soon as the young are reared. By far the majority seen first are young birds, and these arrive from the middle of July onwards.