Chaffinch (male)

These little birds were originally introduced and have since claimed the naturalised conservation status. The Chaffinch displays sexual dimorphism with the males are "brightly coloured in spring and summer with brick-red breasts and chestnut mantles. The crown and nape are greyish-blue and the wings are black with a prominent white wing-bar and shoulder patch. During winter, the colours are duller due to the presence of buff tips to the feathers which wear off by early spring." (https://nzbirdsonline.org.nz/species/chaffinch )