Ragged crow

Ragged crow
	North Island rag ( Callaeas cinereus wilsoni )
Systematics
Subclass :	New-jawed birds (Neognathae)
Order :	Passerines (Passeriformes)
Subordination :	Songbirds (passeri)
Family :	Callaeidae (Callaeidae)
Genre :	Callaeas
Type :	Ragged crow
Scientific name
	Callaeas cinereus
	( Gmelin , 1788)

The ragged crow ( Callaeas cinereus , syn .: Callaeas cinerea ), also known as Kokako , is a songbird from the lobed family that occurs in New Zealand and is classified as critically endangered.

Subspecies

Callaeas cinereus cinereus (South Island, last observed in 2007)
Callaeas cinereus wilsoni (North Island)

Appearance

Callaeas cinereus cinereus (back) and Callaeas cinereus wilsoni (front).

The ragged crow is an approximately 38 cm tall, blue-gray bird with a black face mask. The beak is black and relatively short, the wings are short and rounded. There are brightly colored flaps of skin on either side of the beak. These are blue in the subspecies living on the North Island, but orange in the South Island subspecies.

distribution

The ragged crow is only found in New Zealand. The nominate form C. c. cinereus , which lived on the South Island, is likely to be extinct (although there have been several unconfirmed sightings, most recently in March 2011). The subspecies C. c. wilsoni lives in some forests and nature reserves on the North Island. The population has declined significantly in recent years and is now estimated at 1000 to 1400. By protecting the remaining habitats one tries to preserve the stock.

Behavior and food

The ragged crow prefers coastal forests with species-rich vegetation. Its main vegetarian diet is fruits, flowers, nectar and buds.

Reproduction

As a rule, three eggs are laid, in years with good food availability there are also multiple broods.

literature

BirdLife International (2000): Threatened birds of the world . Barcelona and Cambridge, UK: Lynx Edicions and BirdLife.
Innes, J., Hay, R., Flux, I., Bradfield, P., Speed, H. & P. Jansen (1999): Successful recovery of North Island cocoa Callaeas cinerea wilsoni populations, by adaptive management . Biological Conservation, 87 (2): 201-214.

Web links

Commons : South Island ragged crow ( Callaeas cinereus cinereus ) - Collection of images, videos and audio files

Commons : North Island Ragged Crow ( Callaeas cinereus wilsoni ) - Album with pictures, videos and audio files

Data sheet in ITIS, the Integrated Taxonomic Information System
Callaeas cinereus onthe IUCN 2013 Red List of Threatened Species . Listed by: BirdLife International, 2012. Retrieved October 13, 2013.

swell

↑ 3400 euros reward. Who Finds the South Island Kokako? Retrieved January 27, 2017 .

[1] 3400 euros reward. Who Finds the South Island Kokako? Retrieved January 27, 2017 .