|
Sulidae
The bird family Sulidae comprises the gannets and boobies. Collectively called sulids, they are medium-large coastal seabirds that plunge-dive for fish and similar prey. The 10 species in this family are often considered congeneric in older sources, placing all in the genus ''Sula''. However, ''Sula'' (true boobies) and ''Morus'' (gannets) can be distinguished via morphological, behavioral, and DNA sequence characters. Abbott's booby (''Papasula'') is given its own genus, as it stands apart from both in these respects. It appears to be a distinct and ancient lineage, maybe closer to the gannets than to the true boobies.Kennedy, Martyn; Spencer, Hamish G. & Gray, Russell D. (1996): Hop, step and gape: do the social displays of the Pelecaniformes reflect phylogeny? ''Animal Behaviour'' 51(2): 273-291. (HTML abstract) Erratum: ''Animal Behaviour'' 51(5): 1197. Description Sulids measure about in length and have a wingspan around . They have long, narrow, and pointed wings, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abbott's Booby
Abbott's booby (''Papasula abbotti'') is an endangered seabird of the Sulidae, sulid family, which includes gannets and Booby, boobies. It is a large booby and is placed within its own monotypic genus. It was first identified from a specimen collected by William Louis Abbott, who discovered it on Assumption Island in 1892. Abbott's booby breeds only in a few spots on the Australian territory of Christmas Island in the eastern Indian Ocean, although it formerly had a much wider range. It has white plumage with black markings, and is adapted for long-distance flight. It forages around Christmas Island, often around nutrient-rich oceanic upwellings, although individuals can travel for thousands of kilometres. Pairs mate for life and raise one chick every two or three years, nesting near the top of Rainforest#Emergent layer, emergent trees in the rainforest canopy. The population is decreasing. Historically, much of its former habitat was logged to make way for phosphate mining. Som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
