Among the larger land-birds which still hold their ground in the county are the raven and buzzard, both of which are to be seen on Exmoor and Dartmoor and on the coast, and the peregrine falcon, which has eyries on both the northern and southern seaboards. A few pairs of choughs still build in the northern cliffs; while such rare birds as Montagu's harrier--first identified as a British species in this county--the hoopoe, and the golden oriole still occasionally breed here, and might do so regularly were they left in peace. Several birds, such as the kite and the osprey, the latter of which now breeds nowhere in England, and the former only in one solitary spot, have long since left the county. Warblers as a family are less abundant than in some other parts of the British Isles. The nightingale is nowhere common, but it occurs every season near Ashburton and in the valley of the Teign. Owing to the mildness of the climate it is not at all an unusual thing for a few chiffchaffs and willow-warblers to spend the winter in sheltered valleys on the south coast, instead of migrating to Africa in the autumn. The ring-ouzel is a regular visitor to the open country of Dartmoor, while the dipper haunts many of its streams. Two birds which have greatly increased in numbers of late years are the jackdaw and the starling. It is thought that the former has done much towards exterminating the chough by destroying its eggs; and the latter, by taking possession of its holes, has in many places driven away the green woodpecker. Partridges and pheasants are numerous, but black-game, once abundant on Dartmoor, have become so scarce that they are at present protected the whole year round. But by far the most abundant, and perhaps the most characteristic, of the birds of Devonshire are the sea-fowl, the water-fowl, and the waders, of which more than 140 different kinds have been recorded for the county. Not only are its sandy shores, its bays and estuaries and leys, haunted in autumn and winter by multitudes of northern immigrants--swans, geese, ducks and a great variety of wading-birds; but there are several spots along the south coast and a few on the north where sea-birds regularly breed; while the reed-beds of Slapton Ley provide sanctuary for great numbers of coots and for many wild-ducks and teal, together with some rarer species. Herons are common on the south coast and along the river estuaries, and there are heronries at Powderham and elsewhere. A great black-headed gull (_Larus ichthyaetus_) shot on the Exe in 1859, is the only one known to have been seen in the British Islands.