Crow Call for ID - Kolkata, India, Nov 2021 (1 Viewer)

[sbiswas.geo]

Eastern Jungle Crow or Indian Jungle Crow?

Crow call for ID - eBird media link

 

[Butty]

Are you talking about differentiating the calls of two races of jungle ( = large-billed) crow? Do you have any reason to think that the calls of the two races differ?
Do you have any reason to think that the race involved is other than the normal resident race for Kolkata? I don't imagine large-billed crow is migratory, in which case it will be the resident race.
Are racial differences particularly interesting for large-billed crow? For the great majority of bird species it is not often productive to try and determine the race on any basis other than geography.

 

[sbiswas.geo]

Are you talking about differentiating the calls of two races of jungle ( = large-billed) crow? Do you have any reason to think that the calls of the two races differ?
Do you have any reason to think that the race involved is other than the normal resident race for Kolkata? I don't imagine large-billed crow is migratory, in which case it will be the resident race.
Are racial differences particularly interesting for large-billed crow? For the great majority of bird species it is not often productive to try and determine the race on any basis other than geography.

C. macrorhynchos (Large-billed), C. levaillantii (Eastern Jungle) and C. culminatus (Indian Jungle) - all have different vocalizations and distributions are also non-overlapping. Some taxonomic authorities consider them as full species while others treat them as subspecies. Xeno-cano treats them as full species and so does some field guide books in India. As Indian birders, we usually consider them as separate species and log with ssp name in eBird. Eastern Jungle Crow occurs in neighboring Bangladesh and suspected to extend its range to West Bengal in winter. This bird sounds very different from the culminatus I am used to hear regularly in Kolkata. As a matter of fact, I found it calling from the roof of my apartment and I have never ever seen a culminatus in my area. This is an extremely busy urban area and not really a suitable place for a Jungle Crow.

 

[Butty]

Thank you for giving the necessary information.

 

[Vyomkesh]

This is an extremely busy urban area and not really a suitable place for a Jungle Crow

You mean Eastern Jungle? I find Indian Jungle regularly at home.

 

[sbiswas.geo]

You mean Eastern Jungle? I find Indian Jungle regularly at home.

I don't know where your home is. Jungle Crows are quite rare to find within Kolkata city (metropolitan area). Usually seen in the suburbs.

 

[Vyomkesh]

I don't know where your home is. Jungle Crows are quite rare to find within Kolkata city (metropolitan area). Usually seen in the suburbs.

Since the city where I live is not as large as Kolkata and also the fact that I haven't been there yet means I can't comment much on it. But seeing eBird records for both cities, there are a couple of records of Jungle from core from the city.

 

[Vyomkesh]

As for the Id, the call does seem odd of Indian Jungle I hear. Checking Macaulay, though not labelled as Eastern Jungle, since it is resident in Bangladesh I would say yes to Eastern here!

ML376155101 - Large-billed Crow - Macaulay Library

Macaulay Library ML376155101; © Zaber Ansary - BirdingBD.com; Dhaka bibhag, Bangladesh

macaulaylibrary.org

 

[sbiswas.geo]

Since the city where I live is not as large as Kolkata and also the fact that I haven't been there yet means I can't comment much on it. But seeing eBird records for both cities, there are a couple of records of Jungle from core from the city.

Yes, those will be from the Maidan area, or from the southern and eastern fringes of the city where we have large patches of green. But I live in North Kolkata which is densely populated.