The greenfinches are very sociable in disposition, and all the summer long, even when they are engaged in breeding, they may be seen in parties of three, or four, or half a dozen; two or three nests are often found on the same branch, or in close proximity. The passions of jealousy and anger, so common among birds in the pairing season, seem not to exist in this species. As a songster he cannot compare with the linnet, the chaffinch, and the goldfinch, but he probably produces more pleasant sound than any other finch, unless we include the chirruping of the sparrow. He is attached to gardens and shrubberies, to groves and hedges, and hedgerow trees, especially elms, and among the clustering leaves in which he loves to hide he is constantly uttering his various notes, the commonest of which is a low and long-drawn trill. Occasionally he gives out another long, single note, with a very different sound, a kind of soft-toned, inflected scream, used sometimes as a call-note and sometimes to express alarm; and this he will often repeat again and again at short intervals. When uttering his trill, which is his favourite expression, among the leaves, bird answering bird with trills that vary in tone, he gives out from time to time another sound, a series of warbled notes, soft and melodious in character. Occasionally, in the pairing season, the male bird flies up out of the cloud of foliage and emits these warbling notes as he circles round, and descends into the midst of the leaves again. The charm of this perpetual summer music of the greenfinches is its airy, subdued character, as of wind-touched leaves that flutter musically. The nest is placed among the close branches of a bush or low tree, and is somewhat loosely put together, straw, roots, and moss, mixed with wool, being used, with a lining of fibres, horsehair, and feathers. The eggs are four to six in number, and are white, faintly spotted and speckled with purplish red at the large end. The young are fed on seeds of various weeds and small caterpillars; and two, and sometimes three, broods are reared in the season. At the end of summer the greenfinches repair to the fields, and are seen in flocks of two or three score to a hundred or more individuals, and are also found associating with sparrows, chaffinches, and other species. The greenfinch is a common bird throughout the British Islands. Hawfinch. Coccothraustes vulgaris. [Illustration: FIG. 47.--HAWFINCH. ⅓ natural size.] Lore, throat, and plumage at the base of the bill black; crown and cheeks reddish brown; nape ash-grey; back dark reddish brown; wings black; great coverts white; under parts light purplish red. Length, seven inches. * * * * *