Uzunlukları yaklaşık 15 cm, erkeklerin gaga üstü siyah, tepesi, ense ve boyun yanları mavimsi bozdur. Sırtı pas renginde, kuyruksokumu yeşil, kuyruğunun kenar tüyleri beyaz, kanatları siyah ve beyaz çizgilidir. Dişiler ve yavrular daha soluk, kahverengimsi boz renkleri ile ayırt edilir.
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The chaffinch is about 14.5 cm (5.7 in) long, with a wingspan of 24.5–28.5 cm (9.6–11.2 in) and a weight of 18–29 g (0.63–1.02 oz).[8] The adult male of the nominate subspecies has a black forehead and a blue-grey crown, nape and upper mantle. The rump is a light olive-green; the lower mantle and scapulars form a brown saddle. The side of head, throat and breast are a dull rust-red merging to a pale creamy-pink on the belly. The central pair of tail feathers are dark grey with a black shaft streak. The rest of the tail is black apart from the two outer feathers on each side which have white wedges.[31] Each wing has a contrasting white panel on the coverts and a buff-white bar on the secondaries and inner primaries.[8] The flight feathers are black with white on the basal portions of the vanes. The secondaries and inner primaries have pale yellow fringes on the outer web whereas the outer primaries have a white outer edge.
