| 词条 | Costa's hummingbird |
| 释义 |
| name = Costa's hummingbird | status = LC | status_system = IUCN3.1 | status_ref = [1] | image = Hummingbird.jpg | image2 = Calypte costae.jpg | taxon = Calypte costae | authority = (Bourcier, 1839) |range_map = Calypte_costae_map.svg |range_map_caption = Range of C. costae {{leftlegend|#FFFF00|Breeding range|outline=gray}}{{leftlegend|#008000|Year-round range|outline=gray}}{{leftlegend|#0000FF|Wintering range|outline=gray}} }} Costa's hummingbird (Calypte costae) is a species of hummingbird. DescriptionThis species is very small, a mature adult growing to only {{convert|3|-|3.5|in|cm|abbr=on}} in length. The male Costa's has a mainly green back and flanks, a small black tail and wings, and patches of white below their gorgeted throat and tail. Its most distinguishing feature is its vibrant purple cap and throat with the throat feathers flaring out and back behind its head. The female Costa's hummingbird is not as distinct as the male, having grayish-green above with a white underbelly. DistributionCosta's hummingbird is fairly common in the arid brushy deserts and any nearby gardens of the Southwestern United States and the Baja California Peninsula of Mexico. BehaviourCourtshipThe male Costa's hummingbird's courtship display is a spirited series of swoops and arcing dives, carefully utilizing a proper angle to the sun to show off his violet plumage to impress prospective mates. Each high-speed dive will also pass within inches of the female, perched on a nearby branch, which will be accented by a high-pitched shriek that is produced by the tail. Separately, the male will perch and produce similar sounds in his song—except, the song is vocal rather than tail-generated. NestThe female hummingbird constructs a small cup-shaped nest out of plant fibers and down and coated with lichen to hold it together.[2] The nest will be situated above ground on a yucca stalk or tree limb. ChicksThe female lays just two eggs, which are white in color, which she will incubate for 15 to 18 days before the young hatch. The young Costa's hummingbirds leave the nest after 20 to 23 days. DietLike all other hummingbird species, Costa's hummingbird feeds on flower nectar and any tiny insects that it happens to find in the flower petals. TorporAs with other species, it can slow down its metabolism during cold nights when it enters a hibernation-like state known as torpor and its heart and respiration rate are dramatically slowed. HybridsHybrids between this bird and Anna's hummingbird, the black-chinned hummingbird as well as the broad-tailed hummingbird are known.[3] Meaning of scientific nameThe binomial commemorates French nobleman Louis Marie Pantaleon Costa, Marquis de Beauregard (1806–1864). ConservationThe IUCN describes them as of least concern. The popularion is stable and there are no known threats. They are found in at least one protected area. [4] References1. ^{{IUCN|id=22688202 |title=Calypte costae |assessor=BirdLife International |assessor-link=BirdLife International |version=2013.2 |year=2012 |accessdate=26 November 2013}} 2. ^{{cite journal|author=Woods, Robert S. |title=The Development of Young Costa Hummingbirds|journal=The Condor|issue=6|volume=24|pages=189–193|year=1922|doi=10.2307/1362578}} 3. ^{{cite journal|author=Huey, Laurence M. |year=1944|title=A hybrid Costa's x Broad-tailed hummingbird|journal=The Auk|volume=61|issue=4|pages=636–637|url=http://sora.unm.edu/sites/default/files/journals/auk/v061n04/p0636-p0637.pdf|format=PDF|doi=10.2307/4080185}} 4. ^https://www.iucnredlist.org/species/22688202/93187017#population External links{{Commons category|Calypte costae|Costa's Hummingbird}}{{Wikispecies|Calypte costae}}
9 : Calypte|Endemic birds of Southwestern North America|Birds of Mexico|Native birds of the Southwestern United States|Fauna of the Mojave Desert|Fauna of the Sonoran Desert|Fauna of the Lower Colorado River Valley|Fauna of the Colorado Desert|Birds described in 1839 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。