Chordates • Earth.com

Andean cock-of-the-rock

(Rupicola peruvianus)

Description

The Andean cock-of-the-rock (Rupicola peruvianus),also known as tunki (Quechua),is a large passerine bird of the cotinga family native to Andean cloud forests in South America.It is widely regarded as the national bird of Peru.It has four subspecies and its closest relative is the Guianan cock-of-the-rock.The Andean cock-of-the-rock exhibits marked sexual dimorphism;the male has a large disk-like crest and scarlet or brilliant orange plumage,while the female is significantly darker and browner.Gatherings of males compete for breeding females with each male displaying its colourful plumage,bobbing and hopping,and making a variety of calls.After mating,the female makes a nest under a rocky overhang,incubates the eggs,and rears the young,all by herself.The Andean cock-of-the-rock is a large passerine,approximately 32 cm (13 in) long and weighing around 265 grams (9.3 oz;0.584 lb),although males are somewhat larger and the heaviest specimens can reach 300 grams (11 oz;0.66 lb).The bird is one of many bird species to exhibit marked sexual dimorphism.The male has a large disk-like crest and brilliant scarlet or orange plumage.It has black tail and wings,and pale greyish scapulars.The female is significantly drabber and browner than the male and has a less prominent crest.The bill is yellowish in the male,and dark with a small yellow tip in the female.Depending on gender and subspecies there are significant variations in the color of the iris,ranging from red over orange and yellow to bluish-white in the male,and whitish over reddish to brown in the female.In addition to the display calls described in the breeding section below,foraging birds give a loud querulous “tank?” when disturbed or in flight.

Taxonomic tree:

Domain:
Kingdom: Animalia
Phylum:
Class: Aves
Order:Passeriformes
Family:Cotingidae
Genus:Rupicola
News coming your way
The biggest news about our planet delivered to you each day