| Azure kingfisher | |
|---|---|
 | |
| A. a. ruficollaris | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Coraciiformes |
| Family: | Alcedinidae |
| Subfamily: | Alcedininae |
| Genus: | Ceyx |
| Species: | C. azureus |
| Binomial name | |
| Ceyx azureus (Latham, 1801) | |
| Subspecies | |
| |
| Synonyms | |
Alcedo azurea | |
The azure kingfisher (Ceyx azureus) is a small kingfisher in the river kingfisher subfamily, Alcedininae. [2]
The azure kingfisher measures 17–19 cm (6.7–7.5 in) in length, [2] and the male weighs 29–32 g (1.0–1.1 oz) while the female is slightly heavier at 31–35 g (1.1–1.2 oz). [3] It is a very colourful bird, with deep blue to azure back, a large white to buff spot on the side of the neck and throat, rufous-buff with some blue-violet streaks on the breast and flanks. [4] The feet are red with only two forward toes. [4] The lores (the region between the eye and the bill) are white and inconspicuous except in front view, where they stand out as two large white eye-like spots which may have a role in warding off potential predators.
The subspecies (see box at right) differ only in minor details: compared with the nominate subspecies Ceyx azureus azureus, C. a. ruficollaris is smaller, brighter, and has more blue on the flanks; C. a. diemenensis is rather large, short-billed, and has a distinctly darker crown; C. a. lessoni is more contrasting, with little blue on the flanks; C.a. affinis has a red billtip, as has the smaller C.a. yamdenae; and C. a. ochrogaster is very pale below. Still, there is very little intergradation in the areas where subspecies meet. Comparing subspecific variation with climate data, the former's pattern does not follow and in some instances runs contrary to Bergmann's Rule and Gloger's Rule. [5] [3]
The generic name Ceyx ( /ˈsiːɪks/ ) derives from Ancient Greek : Κήϋξ, romanized: Kēüx, a mythological seabird that was drowned at sea and then found washed ashore by his wife Alcyone, after which both were metamorphosed into kingfishers. [6] The specific epithet is Mediaeval Latin azureus, 'azure'. [6]
The azure kingfisher is found in northern and eastern Australia and Tasmania, as well as the lowlands of New Guinea and neighbouring islands, and out to North Maluku and Romang. The contact zone between the mainland Australian subspecies is along the east coast of Far North Queensland, between Cairns and Princess Charlotte Bay, [5] and that of the New Guinea ones between Simbu Province and the northern Huon Peninsula, as well as south of Cenderawasih Bay. [3]
The habitat of the azure kingfisher includes the banks of vegetated creeks, lakes, swamps, tidal estuaries, and mangroves. [2] [4]
It is common in the north of its range, tending to uncommon in the south. [4] It is generally sedentary, although some seasonal migration may occur. [4]
The azure kingfisher feeds on small fish, crustaceans (such as shrimps, amphipods and freshwater yabbies), water beetles, spiders, locusts, and small frogs or tadpoles. [3] It is often difficult to see until it quickly darts from a perch above water.
The breeding season of the azure kingfisher is from September to April in northern Australia and from August to February in southern Australia, sometimes with two broods. [3] The nest is in a chamber at the end of a 1 m (3 ft 3 in) long burrow in an earthen creek bank. [2] A clutch of 4–6 white, rounded, glossy eggs, measuring 22 mm × 19 mm (0.87 in × 0.75 in), is laid. [4] Both parents incubate the eggs for 20–22 days, and then feed the hatchlings for a further 3 to 5 weeks. [4] [3] The nests are occasionally destroyed by floods and their contents may be taken by the brown snake. [3]
The azure kingfisher is usually silent, but makes a sharp, squeaky call when breeding. [4] Its voice is a high-pitched, shrill "pseet-pseet", often in flight. [3] [2]
Although the population of azure kingfishers is decreasing, their wide distribution enables classification as a species of least concern on the IUCN Red List. [1]
Kingfishers are a family, the Alcedinidae, of small to medium-sized, brightly coloured birds in the order Coraciiformes. They have a cosmopolitan distribution, with most species living in the tropical regions of Africa, Asia, and Oceania, but also can be found in Europe and the Americas. They can be found in deep forests near calm ponds and small rivers. The family contains 118 species and is divided into three subfamilies and 19 genera. All kingfishers have large heads, long, sharp, pointed bills, short legs, and stubby tails. Most species have bright plumage with only small differences between the sexes. Most species are tropical in distribution, and a slight majority are found only in forests.
The belted kingfisher is a large, conspicuous water kingfisher, native to North America. All kingfishers are placed in one family, Alcedinidae, and recent research suggests that this should be divided into three subfamilies.
The common kingfisher, also known as the Eurasian kingfisher and river kingfisher, is a small kingfisher with seven subspecies recognized within its wide distribution across Eurasia and North Africa. It is resident in much of its range, but migrates from areas where rivers freeze in winter.
The river kingfishers or pygmy kingfishers, subfamily Alcedininae, are one of the three subfamilies of kingfishers. The river kingfishers are widespread through Africa and east and south Asia as far as Australia, with one species, the common kingfisher also appearing in Europe and northern Asia. This group includes many kingfishers that actually dive for fish. The origin of the subfamily is thought to have been in Asia.
The swamp sparrow is a medium-sized New World sparrow related to the song sparrow.
The green kingfisher is a species of "water kingfisher" in the subfamily Cerylinae of the family Alcedinidae. It is found from southern Texas in the United States south through Central America, in every mainland South American country except Chile and Trinidad and Tobago.
The sacred kingfisher is a medium-sized woodland kingfisher that occurs in mangroves, woodlands, forests and river valleys in Australia, New Zealand and other parts of the western Pacific.
The yellow-billed kingfisher(Syma torotoro) is a medium-sized tree kingfisher.
Blyth's kingfisher is the largest kingfisher in the genus Alcedo. Named for Edward Blyth, the species has also been known as Alcedo grandis and as the great blue kingfisher. Between 22 and 23 cm long, the kingfisher has deep rufous underparts with a blackish blue breast patch, and brilliant cobalt blue or azure upperparts, tinged with purple. The wings are a dark blackish green, with blue speckles and tips to some of the feathers. The bill of the male is entirely black, while the female has a dark red lower mandible. The species is distinguished from the similar blue-eared kingfisher and common kingfisher by its greater size, heavy black bill, and dark lores.
The collared kingfisher is a medium-sized kingfisher belonging to the subfamily Halcyoninae, the tree kingfishers. It is also known as the white-collared kingfisher, black-masked kingfisher or mangrove kingfisher. It has a wide range extending from the Red Sea across southern Asia to Melanesia. A number of subspecies and subspecies groups have been split from this species including the Pacific kingfisher, the islet kingfisher, the Torresian kingfisher, the Mariana kingfisher, and the Melanesian kingfisher.
The azure-crowned hummingbird is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Belize, El Salvador, Guatemala, Honduras, Mexico, and Nicaragua.
The southern silvery kingfisher is a species of bird in the family Alcedinidae that is endemic to the Philippines found in Mindanao and Basilan. This species and the northern silvery kingfisher, found in the Visayas, were formerly considered conspecific and called the silvery kingfisher.Its natural habitats are tropical moist lowland forests, streams and rivers. It is threatened by habitat loss.
The little kingfisher is a species of kingfisher in the subfamily Alcedininae.
The black-backed dwarf kingfisher, also known as the three-toed kingfisher, is a pocket-sized bird in the family Alcedinidae. It was formerly considered as conspecific with the rufous-backed dwarf kingfisher and together the species complex was known by the English name "oriental dwarf kingfisher".
The Philippine dwarf kingfisher is a species of bird in the family Alcedinidae that is endemic to the Philippines found in the islands of Luzon, Polillo Islands, Catanduanes, Basilan, Samar, Leyte and Mindanao. Its natural habitat is tropical moist lowland forests. It is threatened by habitat loss.
The forest kingfisher, also known as Macleay's or the blue kingfisher, is a species of kingfisher in the subfamily Halcyoninae, also known as tree kingfishers. It is a predominantly blue and white bird. It is found in Indonesia, New Guinea and coastal eastern and Northern Australia. Like many other kingfishers, it hunts invertebrates, small frogs, and lizards.
The red-backed kingfisher is a species of kingfisher in the subfamily Halcyoninae, also known as tree kingfishers. It is a predominantly blue-green and white bird with a chestnut rump. It is found across the continent of Australia, mainly inhabiting the drier regions.
The blue nuthatch is a bird species in the nuthatch family Sittidae. It is a medium-sized nuthatch, measuring 13.5 cm (5.3 in) in length. The species, which shows slight sexual dimorphism, has dramatic coloration unlike any other member of its genus. Its head is black or blackish-blue dark blue upperparts close to purple with azure feathers. The wings are edged with black. The throat and chest are white or a washed buff color, contrasting with the upperparts and the belly of a very dark blue; the covert feathers are generally clear, blue-gray or purplish.
The northern silvery kingfisher is a species of bird in the family Alcedinidae that is endemic to the Philippines being found in the Visayas on the islands of Bohol, Leyte and Samar. This species and the southern silvery kingfisher, which is found on Mindanao, were formerly considered conspecific and called the silvery kingfisher. Its natural habitats are tropical moist lowland forests, streams and rivers. It is threatened by habitat loss.
The dimorphic dwarf kingfisher is a species of bird in the family Alcedinidae that is endemic to the central and southern Philippines. Its natural habitat is tropical moist lowland forests.
