Paloma Bicrestada

The topknot pigeon (Lopholaimus antarcticus) is a pigeon native to eastern Australia. == Taxonomy == English naturalist George Shaw described the topknot pigeon as Columba antarctica in 1793. The topknot pigeon is sister taxon to a lineage that gave rise to the mountain pigeons (Gymnophaps) of New Guinea, the common ancestor of both diverged from a lineage that gave rise to the kererū and Chatham pigeon. "Topknot pigeon" has been designated the official common name by the International Ornithologists' Union (IOC); John Gould noted in 1848 that it had been given this name by the colonists of New South Wales. It is also known by the name of "flock pigeon". == Description == The topknot pigeon is a large predominately slate-grey bird, 40–46 centimetres (16–18 in) in length. The back, coverts and upper secondaries are a darker slate-grey with black quills. The primaries are black, the remaining body in a lighter slate-grey in colour. The chest and hind neck are notched, showing dark bases giving a streaked appearance.[2] The tail is black crossed with a broad grey band. The crest is grey from the cere to the forehead, and russet brown on the crown with black sides. The mandibles are…