| 词条 | Comb-crested jacana |
| 释义 |
| image = Irediparra gallinacea - Comb-crested Jacana.jpg | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Irediparra | parent_authority = Mathews, 1911 | species = gallinacea | authority = (Temminck, 1828) }} The comb-crested jacana (Irediparra gallinacea), also known as the lotusbird or lilytrotter, is the only species of jacana in the genus Irediparra. Like other jacana species, it is adapted to the floating vegetation of tropical freshwater wetlands. DescriptionThis species is unmistakable. It has a black crown and hindneck with a fleshy red wattle covering the forehead and forecrown, contrasting with a white face and throat. There is a broad black band on the lower breast with white belly. Underwing black. Back and upperwing mainly grey-brown with black primary coverts, rump and tail. Long legs with extremely long toes. The male is slightly smaller than the female and measures {{convert|20|-|22|cm|in|abbr=on}} in length and weighs {{convert|68|-|84|g|oz|abbr=on}}. The female measures {{convert|24|-|27|cm|in|abbr=on}} in length and weighs {{convert|120|-|150|g|oz|abbr=on}}.[2] The wingspan ranges from {{convert|39|to|46|cm|in|abbr=on}}. Distribution and habitatThe bird occurs in south-eastern Borneo, the southern Philippines, Sulawesi, Moluccas, Lesser Sunda Islands, New Guinea, New Britain, and northern and eastern Australia. Its habitat is freshwater wetlands with abundant floating vegetation, such as water-lilies or water hyacinth, forming a mat on the water surface. BehaviourBreedingThe comb-crested jacana is polyandrous.[3] It builds a flimsy nest on floating or emergent vegetation, in which the female lays four lustrous, pale brown eggs covered by black markings. Only males incubate.[3] The young hatch well-developed and soon leave the nest. FeedingIt eats seeds and aquatic insects gleaned from floating vegetation or the water surface. VoiceThis species gives a squeaky, high-pitched chittering. References1. ^{{IUCN|id=22693540 |title=Irediparra gallinacea |assessor=BirdLife International |assessor-link=BirdLife International |version=2013.2 |year=2012 |accessdate=26 November 2013}} 2. ^CRC Handbook of Avian Body Masses by John B. Dunning Jr. (Editor). CRC Press (1992), {{ISBN|978-0-8493-4258-5}}. 3. ^1 {{citation |authors=Székely, T.; Reynolds, J.D.; Figuerola, J. |year=2000 |title=Sexual Size Dimorphism In Shorebirds, Gulls, And Alcids: The Influence Of Sexual And Natural Selection |journal=Evolution |volume=54 |issue=4 |pages=1404–1413 |doi=10.1554/0014-3820(2000)054[1404:SSDISG]2.0.CO;2}}
6 : Jacanidae|Birds of Australia|Birds of Indonesia|Birds of New Guinea|Birds of the Philippines|Birds described in 1828 |
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