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The average European goldfinch is 12–13 cm (4.7–5.1 in) long with a wingspan of 21–25 cm (8.3–9.8 in) and a weight of 14 to 19 g (0.49 to 0.67 oz). The sexes are broadly similar, with a red face, black and white head, warm brown upper parts, white underparts with buff flanks and breast patches, and black and yellow wings.
White-capped tanager: Sericossypha albocristata (Lafresnaye, 1843) 8 Scarlet-throated tanager: Compsothraupis loricata (Lichtenstein, MHC, 1819) 9 Black-masked finch: Coryphaspiza melanotis (Temminck, 1822) 10 Pampa finch: Embernagra platensis (Gmelin, JF, 1789) 11 Serra finch: Embernagra longicauda Strickland, 1844: 12 Lesser grass finch
The upper parts are greyish green and the under parts grey-streaked white. Its wings are black with a conspicuous yellow wing bar, and the tail is black with yellow sides. The male has a mainly yellow face and breast, with a neat black cap. Female and young birds have a greyish green head and no cap. It is a trusting, sociable and active bird.
Black-headed hemispingus – Pseudospingus verticalis; Poospiza Cabanis, 1847: Bolivian warbling finch – Poospiza boliviana; Cinnamon warbling finch – Poospiza ornata; Black-and-rufous warbling finch – Poospiza nigrorufa; Black-and-chestnut warbling finch – Poospiza whitii; Collared warbling finch – Poospiza hispaniolensis
The black-and-white mannikin (Spermestes bicolor) also black-and-white munia or red-backed mannikin, is a species of estrildid finch, widely occurring throughout the African tropical rainforest. It has an estimated global extent of occurrence of 4,200,000 km 2. It is found in moist savanna and subtropical or tropical moist lowland forest habitat.
The family Fringillidae are the "true" finches. The International Ornithological Committee (IOC) recognizes these 239 species in the family, distributed among three subfamilies and 50 genera. Confusingly, only 79 of the species include "finch" in their common names, and several other families include species called finches.
The male has a black head and black throat, and a broad white superciliary stripe. The cheek area is also white. The upper parts of the body, the wings and tail are grey, apart from the white tips to the wing-coverts and the large white areas at the corners of the tail which are particularly obvious in flight. The underparts are largely pale grey.
This is despite the lack of known behavioral adaptations against brood parasites in this finch. It is thought that the inability of brown-headed cowbird chicks to survive is due to a failure to get enough nutrition; the seed-rich diet of American goldfinch chicks varies from the usual insect-rich diet of other hosts. [34]