| 词条 | Nacunda nighthawk |
| 释义 |
| image = Nacunda nighthawk.jpg | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Chordeiles | species = nacunda | authority = (Vieillot, 1817) | synonyms = *Podager nacunda[1] }} The nacunda nighthawk (Chordeiles nacunda) is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay, and Venezuela. Its natural habitats are dry savanna, subtropical or tropical seasonally wet or flooded lowland grassland, and heavily degraded former forest.[1] TaxonomyThe species was formerly placed in the monotypic genus Podager, but was reclassified into the genus Chordeiles in 2011.[2] The former generic name podager originates from the Latin meaning "a man suffering from gout" and reflects the awkward walking manner of this nighthawk. The specific name nacunda is derived from the Guaraní word for a "big-mouth".[3] DescriptionThe nacunda nighthawk is not only the largest of the highly aerial nightjars known as nighthawks and the largest species of nightjar in the neotropics, it is one of the largest species in the world. Its length, at {{convert|27.5|to|32|cm|in|abbr=on}}, is somewhat less than the great eared-nightjar, which is typically considered the largest species in the family, but the nacunda may actually weigh a bit more on average.[4] Six specimens of nacunda nighthawk were found to average {{convert|159|g|oz|abbr=on}} in body mass, with range of {{convert|130|to|188|g|oz|abbr=on}}.[5] Its very large size, large head, and pale body with highly contrasting black primaries make the nacunda nighthawk easy to identify.[6] This species is noteworthy for its partially diurnal habits. Though a capable aerial forager, the nacunda nighthawk spends a considerable amount of time on the ground; it has notably long tarsi for a nightjar, and is more likely than other species to be seen standing on the ground, rather than resting on the surface.[6] References1. ^1 2 {{cite journal | authors = BirdLife International | title = Chordeiles nacunda | journal = IUCN Red List of Threatened Species | volume= 2016 | page = e.T22689723A93245296 | publisher = IUCN | year = 2016 | url = http://www.iucnredlist.org/details/22689723/0 | doi = 10.2305/IUCN.UK.2016-3.RLTS.T22689723A93245296.en | issn = 2307-8235 | accessdate = 12 July 2018}} 2. ^{{Cite web|url=http://www.worldbirdnames.org/bow/nightjars/|title=Frogmouths, Oilbird, potoos & nightjars – IOC World Bird List|website=www.worldbirdnames.org|language=en-US|access-date=8 June 2017}} 3. ^{{cite book|authorlink=Philip Sclater|author=Sclater, Philip |title=Argentine Ornithology: A Descriptive Catalogue of the Birds of the Argentine Republic|url=https://books.google.com/books?id=3i1ioQ_BkrMC&pg=PA12|year=1889|publisher=R. H. Porter|page=12}} 4. ^{{cite book|last1=Del Hoyo|first1=J.|last2=Elliot|first2=A.|last3=Sargatal|first3=J.|year=1992|title=Handbook of the Birds of the World|location=Barcelona|publisher=Lynx Editions}} 5. ^{{cite book|title=CRC Handbook of Avian Body Masses|edition=2nd|editor1-first=John B.|editor1-last= Dunning Jr.|publisher=CRC Press|year=2008|ISBN=978-1-4200-6444-5}} 6. ^1 {{cite web|url=http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=217336|title=Neotropical Birds|publisher=Cornell Labs| accessdate = 21 July 2018}} External links{{Commons category|Chordeiles nacunda}}{{Wikispecies|Chordeiles nacunda}}
4 : Chordeiles|Birds of South America|Birds described in 1817|Taxonomy articles created by Polbot |
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