| 词条 | Northern double-collared sunbird |
| 释义 |
| image = Northern double-collared sunbird (Cinnyris reichenowi preussi) male.jpg | image_caption = Male Bwindi Impenetrable Forest, Uganda | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Cinnyris | species = reichenowi | authority = Sharpe, 1891 | synonyms = Nectarinia preussi Nectarinia reichenowi Cinnyris preussi |synonyms_ref = [2] }} The northern double-collared sunbird, or golden-winged sunbird, (Cinnyris reichenowi), is a species of bird in the Nectariniidae family. It is found in Burundi, Cameroon, Central African Republic, Democratic Republic of the Congo, Equatorial Guinea, Kenya, Nigeria, Rwanda, South Sudan, and Uganda.[3] DescriptionThe northern double-collared sunbird is a medium-sized species. The adult male's head and back is a metallic green that has a steely-blue sheen in some lights. The rump is greyish-brown, the uppertail coverts metallic purple and the tail black, glossed blue. The main flight feathers are dark brown. There is a narrow purple collar beneath the metallic green throat, above a scarlet breast and pale brown belly. There are pale yellow pectoral tufts that are not always visible. The eye is black or dark brown, and the beak and legs are black. The adult female is more drab with upper parts dark olive green and a dark brown tail. The underparts are greyish-olive, the belly being tinged with yellow. The juvenile is similar to the adult female.[3] EcologyThe northern double-collared sunbird is often found in small mixed-species flocks and often associates with the black-capped speirops (Zosterops lugubris) and the oriole finch (Linurgus olivaceus). It tends to perch in the mid-storeys of trees, looking from side to side. It feeds on nectar, insects and their larvae, and spiders. The male is territorial and sings vigorously. It is aggressive throughout the year and attacks con-specific males, sometimes resulting in mid-air fights which may continue on the ground. It also does battle with the Cameroon sunbird (Cyanomitra oritis) and the olive-bellied sunbird (Cinnyris chloropygia).[3] StatusThe northern double-collared sunbird is a common species with a very wide range, and the population trend is thought to be steady. No particular threats have been identified and the International Union for Conservation of Nature has assessed the bird's conservation status as being of "least concern".[1] ==References== 1. ^1 {{IUCN|id=22717975 |title=Nectarinia reichenowi | assessor=BirdLife International | assessor-link=BirdLife International |version=2016.2 |year=2012 |accessdate=22 October 2016}} {{Taxonbar|from=Q3180327}}{{DEFAULTSORT:sunbird, double-collared, northern}}2. ^{{avibase|A6083057AAFDDFC4|Cinnyris reichenowi}} 3. ^1 2 {{cite book|author1=Mann, Clive F.|author2=Cheke, Robert A.|title=Sunbirds: A Guide to the Sunbirds, Flowerpeckers, Spiderhunters and Sugarbirds of the World|url=https://books.google.com/books?id=AeutEaTRyswC&pg=PA271 |year=2010 |publisher=Bloomsbury Publishing |isbn=978-1-4081-3568-6 |pages=271–272}} 6 : Cinnyris|Birds of the Gulf of Guinea|Birds of Sub-Saharan Africa|Birds described in 1891|Birds of East Africa|Taxonomy articles created by Polbot |
| 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。