Bird of the day
Pacific baza
Aviceda subcristata
The Pacific baza (Aviceda subcristata), also known as the crested hawk, crested baza, and Pacific cuckoo-falcon, is a slender, medium-sized species of hawk in the family Accipitridae. It is mostly grey, brown, and white coloured and grows to a length of 35–46 centimetres (14–18 in). It is an omnivore and usually does not migrate. The breeding season for the species lasts from September to at least February, during which time specimens commonly fly and vocalise for display. It lives in Australia, Indonesia, Papua New Guinea, Solomon Islands, and East Timor, in forests, savannas, and freshwater bodies. The International Union for Conservation of Nature lists it as a least concern species.
The Pacific baza is a slender, medium-sized bird, with a slim head and neck. Its appearance is similar to that of other species in its genus. It grows to a total length of 35–46 centimetres (14–18 in), with a wingspan of 80–105 centimetres (31–41 in) and a tail length of 19–23 centimetres (7.5–9.1 in). It weighs 260–450 grams (9.2–15.9 oz), with females being slightly heavier than males. Specimens are typically smaller in the extreme western and eastern parts of its range.
The species have a white underside, which is barred with black. Its upperside is grey, with brown scapulas. It has a grey head, which is small proportionally and partially domed, and yellow eyes, which are round and located far into the side of its head. Its thighs are reddish-brown coloured and its feet are grey. It has bands on its fingers, which are visible when flying in circles. It is the only New Guinean raptor that is crested, having a small, spiky crest on its nape. Its wings are broad, rounded, and paddle-shaped with distinct bands; they are very large in comparison to its body. They are narrowest where they meet its body, broadening to their ends. The edges of the wings are curved when the bird is in flight. The species has a long tail with a square end, which is tipped with black. It is the same length as the entire rest of its body.
Females can be distinguished from males by having a slightly browner upperside and sometimes more barring on their secondary flight feathers. Juveniles can be differentiated from adults by having a much browner upperside. They also have pale eyes, rather than the sharp yellow eyes of adults, a patterned face, smaller barring on their belly, a rust-coloured breast, a white throat, and a cream to blue-grey coloured cere. The Pacific baza can be distinguished from the long-tailed honey buzzard (Henicopernis longicauda), which is similar in appearance to this species, by having less-rounded wings and a breast that is barred rather than streaked.
Aliases
Aviceda subcristata
Range
