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The painted bunting's juveniles have two inserted moults in their first autumn, each yielding plumage like an adult female. The first starts a few days after fledging replacing the juvenile plumage with an auxiliary formative plumage; the second a month or so later giving the formative plumage. [3] Abnormal plumages include a variety of conditions.
Exhibiting a high degree of sexual dimorphism, the male in breeding plumage is a small, long-tailed bird of predominantly bright blue and black colouration. Non-breeding males, females and juveniles are predominantly grey-brown in colour; this gave the early impression that males were polygamous as all dull-coloured birds were taken for females.
The female has a feeble keh or neeh quack. [17] Males in nuptial plumage are distinguished from green-winged teals by the horizontal white scapular stripe, the lack of a vertical white bar at the breast sides, and the quite conspicuous light outlines of the face patch, which are indistinct in the green-winged teal drake. Males in eclipse ...
The superb fairywren (Malurus cyaneus) is a passerine bird in the Australasian wren family, Maluridae, and is common and familiar across south-eastern Australia. It is a sedentary and territorial species, also exhibiting a high degree of sexual dimorphism; the male in breeding plumage has a striking bright blue forehead, ear coverts, mantle, and tail, with a black mask and black or dark blue ...
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The female has a more cinnamon tinge to her plumage than the grey-brown of the other two subspecies. [ 18 ] [ 20 ] Blue-and-white fairywren ( M. l. leuconotus) - Gould, 1865 : Originally described as a separate species, it is endemic to mainland Australia and distinct in that it is the only subspecies to have nuptial males that show prominent ...
The plumage of juvenile double-crested cormorants is more dark gray or brownish. The underparts of a juvenile are lighter than the back with a pale throat and breast that darkens towards the belly. As a bird ages, its plumage will grow darker. The bill of a juvenile will be mostly orange or yellowish. [8]
The original English name for this bird, dating back to at least 1465, is the ree, perhaps derived from a dialectical term meaning "frenzied"; [8] a later name reeve, which is still used for the female, is of unknown origin, but may be derived from the shire-reeve, a feudal officer, likening the male's flamboyant plumage to the official's robes.