The other birds include parrots, toucans, gaudily coloured cuckoos, lories, swallows, shrikes, sun-birds, kingfishers, weavers, finches, wild pigeons and crows.
The linnets, through the genus Leucosticte, lead to the mountain-finches (Montifringilla), and the redpolls through the siskins (Chrysomitris) to the goldfinches (Carduelis); and these last again to the hawfinches, one group of which (Coccothraustes) is apparently not far distant from the chaffinches (Fringilla proper), and the other (Hesperiphona) seems to be allied to the greenfinches (Ligurinus) .
Some naturalists would add the finches (Fringillidae), rightly if we assume that the Ploceidae or weavers constitute a separate family.
Amongst the Passeres, such forms as the larks, stone-chats, finches, linnets and grosbeaks are well developed, and exhibit many species.
His colleague, Vieillot, brought out in 1805 a Histoire naturelle des plus beaux chanteurs de la Zone Torride with figures by Langlois of tropical finches, grosbeaks, buntings and other hard-billed birds; and in 1807 two volumes of a Histoire' naturelle des oiseaux de l'Amenique septentrionale, without, however, paying much attention to the limits commonly assigned by geographers to' that part of the world.