Fragata magnífica: Diferenzas entre revisións

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The magnificent frigatebird was originally considered to belong to the species ''Fregata aquila'' but in 1914 the Australian ornithologist [[Gregory Mathews]] proposed that the magnificent frigatebird should be considered as a separate species with the [[Binomial nomenclature|binomial name]] ''Fregata magnificens''.<ref>{{cite journal | last=Mathews | first=GM | author-link=Gregory Mathews | year=1914 | title=On the species and subspecies of the genus ''Fregata'' | journal=Australian Avian Record | volume=2 | issue=6 | pages=120 (117–121) | url=https://www.biodiversitylibrary.org/page/34804726 }}</ref> Of the four other species within the genus ''Fregata'', genetic analysis has shown that the magnificent frigatebird is most closely related to the [[Ascension frigatebird]] (''Fregata aquila'').<ref name=kennedy04>{{cite journal | last1=Kennedy | first1=Martyn | last2=Spencer | first2=Hamish G | year=2004 | title=Phylogenies of the frigatebirds (Fregatidae) and tropicbirds (Phaethonidae), two divergent groups of the traditional order Pelecaniformes, inferred from mitochondrial DNA sequences | journal=Molecular Phylogenetics and Evolution | volume=31 | issue=1 | pages=31–38 | doi=10.1016/j.ympev.2003.07.007 | pmid=15019606}}</ref>▼

[[File:Avian hitchhikers on the top deck of Xavier III - famle juvenile Magnificent Frigatebird (Fregata magnificens) - (16472504597).jpg|thumb|Female juvenile magnificent frigatebird]]▼

The magnificent frigatebird is the largest species of [[frigatebird]]. It measures {{convert|89|-|114|cm|in|abbr=on}} in length, has a wingspan of {{convert|2.17|-|2.44|m|ft|abbr=on}} and weighs {{convert|1.1|-|1.59|kg|lb}}.<ref name=hbwonline>{{cite book| last1=Orta | first1=J | last2=Garcia | first2=EFJ | last3=Kirwan | first3=GM | last4=Boesman | first4=P | chapter=Magnificent Frigatebird (''Fregata magnificens'') | editor1-last=del Hoyo | editor1-first=J | editor2-last=Elliott | editor2-first=A | editor3-last=Sargatal | editor3-first=J | editor4-last=Christie | editor4-first=DA | editor5-last=de Juana | editor5-first=E | title=Handbook of the Birds of the World Alive | publisher=Lynx Edicions | chapterurl= http://www.hbw.com/node/52669 | accessdate=30 November 2014 }}{{subscription required}}</ref> Males are all-black with a scarlet [[throat pouch]] that is inflated like a balloon in the breeding season. Although the feathers are black, the scapular feathers produce a purple iridescence when they reflect sunlight, in contrast to the male [[Great frigatebird|great frigatebird's]] green sheen. Females are black, but have a white breast and lower neck sides, a brown band on the wings, and a blue eye-ring that is diagnostic of the female of the species. Immature birds have a white head and underparts.▼