Genera: (a) Trochilus, Certhia, Upupa, Buphaga, Sitta, Oriolus, Coracias, Gracula, Corvus, Paradisea; (b) Ramphastos, Trogon, Psittacus, Crotophaga, Picus, Yunx, Cuculus, Bucco; (c) Buceros, Alcedo, Merops, Todos.
Those known to the older naturalists were for a long while referred to the genus Certhia (Tree-Creeper, q.v.) or some other group, but they are now fully recognized as forming a valid Passerine family Nectariniidae, from the name Neetarinia invented in 1881 by Illiger.
On the upper verge of the pine forests, or in the scrubby vegetation just beyond, the following are not uncommon - black woodpecker (Picus martius), ring-ousel (Turdus torquatus), Bonelli's warbler (Phylloscopus Bonellii), crested tit (Parus cristatus), citril finch (Citrinella alpina), siskin (Chrysomitris spinus), crossbill (Loxia curvirostra), nutcracker (Nucifraga caryocatactes), blackcock (Tetrao tetrix), and the alpine varieties of the marsh-tit (Parus palustris, borealis) and tree-creeper (Certhia familiaris, costae).
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