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House crow, Corvus splendens

Thanks to andyb39 and PYRTLE at Birdforum for helping me out with the House Crow. I had identified it as a House Crow but the head shape made me wonder about the identification.

Forum thread HERE


Birdforum



The house crow (Corvus splendens), also known as the Indian, greynecked, Ceylon or Colombo crow, is a common bird of the crow family that is of Asian origin but now found in many parts of the world, where they arrived assisted by shipping. It is between the jackdaw and the carrion crow in size (40 cm in length) but is slimmer than either.

The forehead, crown, throat and upper breast are a richly glossed black, whilst the neck and breast are a lighter grey-brown in colour. The wings, tail and legs are black. There are regional variations in the thickness of the bill and the depth of colour in areas of the plumage.

Distribution and habitat
It has a widespread distribution in southern Asia, being native to Nepal, Bangladesh, India, Pakistan, Sri Lanka, Maldives and Laccadive Islands, South West Thailand and coastal southern Iran. It was introduced to East Africa around Zanzibar (about 1897) and Port Sudan.

It arrived in Australia via ship but has up to now been exterminated. Recently, it has made its arrival in Europe and has been breeding in the Dutch harbour town Hook of Holland since 1998.

A population between 200 and 400 birds has been present in Sham Shui Po, New Kowloon, Hong Kong, in particular Lai Kok Estate and Sham Shui Po Park, as well as Kowloon Tsai Park in Kowloon Tsai. An individual has been present in Cork Harbour on the south coast of Ireland since early September 2010.

In the New World, a small population of house crows is established in the area around St. Petersburg, Florida.

It is associated with human settlements throughout its range, from small villages to large cities. In Singapore, there was a density of 190 birds/km2 in 2001 with efforts to suppress the population in planning.

Due to a human population explosion in the areas it inhabits, this species has also proportionately multiplied. Being an omnivorous scavenger has enabled it to thrive in such circumstances.

The invasive potential for the species is great all over the tropics. This species is able to make use of resources with great flexibility and appears to be associated with humans, and no populations are known to exist independently of humans.

House crow, Corvus splendens

Range map from www.oiseaux.net - Ornithological Portal Oiseaux.net
www.oiseaux.net is one of those MUST visit pages if you're in to bird watching. You can find just about everything there

Taxonomy
The nominate race C. s. splendens is found in Pakistan, India, Nepal and Bangladesh and has a grey neck collar. The subspecies C. s. zugmayeri is found in the dry parts of South Asia and Iran and has a very pale neck collar. The subspecies C. s. protegatus is found in southern India, the Maldives (sometimes separated as maledivicus) and Sri Lanka and is darker grey. C. s. insolens, found in Myanmar, is the darkest form and lacks the grey collar.

Behaviour

Diet
House crows feed largely on refuse around human habitations, small reptiles and mammals, and other animals such as insects and other small invertebrates, eggs, nestlings, grain and fruits. House crows have also been observed swooping down from the air and snatching baby squirrels. Most food is taken from the ground, but also from trees as opportunity arises.

They are highly opportunistic birds and given their omnivorous diet, they can survive on nearly anything that is edible. These birds can be seen near marketplaces and garbage dumps, foraging for scraps. They have also been observed to eat sand after feeding on carcasses.

House crow, Corvus splendens
House Crow feeding on garbage
Djibouti - September 2018


Nesting
At least some trees in the local environment seem to be necessary for successful breeding although house crows occasionally nest on telephone towers. It lays 3–5 eggs in a typical stick nest, and occasionally there are several nests in the same tree. In South Asia they are parasitized by the Asian koel. Peak breeding in India as well as Peninsular Malaysia is from April to July. Large trees with big crowns are preferred for nesting.

Roosting
House crows roost communally near human habitations and often over busy streets. A study in Singapore found that the preferred roost sites were in well-lit areas with a lot of human activity, close to food sources and in tall trees with dense crowns that were separated from other trees.

The roost sites were often enclosed by tall buildings. Before flying into roost trees, crows make pre-roosting aggregations perched on TV antennas, roof tops, wayside trees, open fields, and feed or preen during this time.

Voice
The voice is a harsh kaaw-kaaw.

Listen to the House Crow

Remarks from the Recordist

Recorded with my ZOOM H5 Handy recorder. High Pass Filter applied with Audacity

Recorded in the area around my hotel, Acacias Hotel in Djibouti.

I spot a House Crow and it looked very strange. I had seen one at the Supermarket earlier and it reminded me about a Vulture with the head shape. But the rest of it looked like a House Crow. Lucky to have www.birdforum.net where I can find help and my identification was confirmed


www.xeno-canto.org


Relationship to humans
It is suspected that paramyxoviruses, such as PMV 1 that causes of Newcastle disease may be spread by Corvus splendens. Outbreaks of Newcastle disease in India were often preceded by mortality in crows. They have also been found to carry Cryptococcus neoformans, which can cause cryptococcosis in humans.

House crows in Tanzania curiously showed an absence of blood parasites, although some species such as Trypanosoma corvi have been first described from this species. Pathologist T.R. Lewis expressed surprise at the numbers of haematozoa present in the blood of house crows from Calcutta.

Regional names
Assamese - পাতি কাউৰী, Bengali - পাতিকাক, Gujarati - દેશી કાગડો, Hindi - कौवा, Kannada - ಕಾಗೆ, Malayalam - പേനക്കാക്ക, Marathi - कावळा, Nepali - घर काग, Punjabi - ਕਾਂ, Sanskrit - ग्राम काक, वायस, Tamil - வீட்டுக் காகம், Telugu - కాకి. Laturi- काळा कावळा Bamni-गणू कावळा

Conservation status
House crow, Corvus splendens
Least Concern (IUCN 3.1)
IUCN Red List of Threatened Species. Version 2013.2.
International Union for Conservation of Nature. Retrieved 26 November 2013.



From Wikipedia, the free encyclopedia
From Wikipedia, the free encyclopedia

www.birdforum.net


Sighted: (Date of first photo that I could use) 7 September 2018
Location: Acacias Hotel, Djibouti


House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 7 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - Acacias Hotel, Djibouti - 9 September 2018

House crow, Corvus splendens
House crow / Corvus splendens - On board m/t Ribe Maersk, Djibouti anchorage - 10 October 2018

House crow, Corvus splendens
House crow / Corvus splendens - On board m/t Ribe Maersk, Djibouti anchorage - 10 October 2018

House crow, Corvus splendens
House crow / Corvus splendens - On board m/t Ribe Maersk, Djibouti anchorage - 10 October 2018

House crow, Corvus splendens
House crow / Corvus splendens - On board m/t Ribe Maersk, Djibouti anchorage - 10 October 2018

House crow, Corvus splendens
House crow / Corvus splendens - On board m/t Ribe Maersk, Djibouti anchorage - 10 October 2018




PLEASE! If I have made any mistakes identifying any bird, PLEASE let me know on my guestbook



       
                  



                                       

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