Black-crested finch

The black-crested finch (Lophospingus pusillus) is a species of bird in the family Thraupidae. It is found in Bolivia, Paraguay and northern Argentina. Its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical high-altitude shrubland. It is a fairly common bird with a very wide range, and the International Union for Conservation of Nature has rated it to be a "least-concern species".[1]

Lophospingus pusillus in Teniente Enciso National Park, Boquerón Paraguay

Black-crested finch

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Thraupidae
Genus: Lophospingus
Species:
L. pusillus
Binomial name
Lophospingus pusillus
(Burmeister, 1860)

Description

The adult black-crested finch is about 14 cm (5.5 in) in length. It has a yellowish-pink beak and a distinctive spiky black crest.[2] The male has a black head and black throat, and a broad white superciliary stripe. The cheek area is also white. The upper parts of the body, the wings and tail are grey, apart from the white tips to the wing-coverts and the large white areas at the corners of the tail which are particularly obvious in flight. The underparts are largely pale grey. The female is a little more drab, the crest is retained but the head pattern is less distinct, and the back and wings are tinged with brown.[2]

Distribution and habitat

The black-crested finch is found in a large swathe of land in South America. Its range extends from southern Bolivia, through western Paraguay to northern Argentina. It is usually found in open woodland and chaco scrubland, at altitudes of up to 1,000 m (3,300 ft).[2] It has been introduced into Uruguay.[1]

Ecology

The black-crested finch is generally seen in pairs or in small groups. It forages on the ground and in the undergrowth for seeds and small invertebrates. The nest is built by the male and is cup shaped. It is composed of lichens and vegetable fibres, bound together with spiders' webs and lined with animal hairs and fine rootlets.[3]

gollark: ... *just* as I type that, another "B4ckdoor-owned-you" one.
gollark: I wanted to do something fun with them like give them a HTTP response which never finishes, but sadly the bots seem to have stopped.
gollark: ```<127.0.0.1> 27.121.85.10 [07/Jun/2020:16:59:55 +0000] "POST /cgi-bin/ViewLog.asp HTTP/1.1" 301 169 "-" "B4ckdoor-owned-you"<> 96.69.158.193 [07/Jun/2020:17:19:21 +0000] "POST /boaform/admin/formPing HTTP/1.1" 400 157 "-" "polaris botnet"```Some of the HTTP requests I get are so funny. The second one literally says it's from a botnet.
gollark: Personally I really dislike Go as a language, because it *pretends* to be simple but has weird special cases everywhere to make stuff work and an awful type system, and is generally hostile to abstracting things.
gollark: Python's standard library is *very large* too. `pip` is annoying but has many packages available and there are a lot of builtin ones.

References
  1. BirdLife International (2012). "Lophospingus pusillus". IUCN Red List of Threatened Species. 2012. Retrieved 8 September 2015.CS1 maint: ref=harv (link)
  2. Ridgely, Robert S.; Tudor, Guy (2009). Field Guide to the Songbirds of South America: The Passerines. University of Texas Press. p. 663. ISBN 978-0-292-71748-0.
  3. Jaramillo, A. (2011). "Black-crested Finch (Lophospingus pusillus)". Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Retrieved 8 September 2015.
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