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Strange duck from Istanbul (1 Viewer)

oleg2oleg

oleg2oleg

Well-known member
Hi! I make these pictures in Istanbul, on Golden Horn in April. I think that it's some kind of hybrid, but I can't guess it's parents.... ))))
 

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Looks like a Rosybill (Netta peposaca) - a South American species, fairly common in captivity in Europe so presumably an escape in Istanbul!
 
stevethehydra said:
Looks like a Rosybill (Netta peposaca) - a South American species, fairly common in captivity in Europe so presumably an escape in Istanbul!
Click to expand...

So you're thinking that it is runaway from some zoo? )) But as I see, all Rosybills has some growth on the bill, and this one haven't....
 
oleg2oleg said:
But as I see, all Rosybills has some growth on the bill, and this one haven't....
Click to expand...

I could imagine that the knob on the bill varies seasonally (i.e., more pronounced during courtship and breeding due to the influence of testosterone and maybe too dihydro-testosterone) and possibly also, with age?
 
Last edited:
stevethehydra said:
Looks like a Rosybill (Netta peposaca) - a South American species, fairly common in captivity in Europe so presumably an escape in Istanbul!
Click to expand...

Steve Schoech said:
I could imagine that the knob on the bill varies seasonally (i.e., more pronounced during courtship and breeding due to the influence of testosterone and possible dihydro-testosterone) and possibly also, with age?
Click to expand...
Yes... It can change.... Anyway it should be Rosybill... ))
Thank you!
 
OP bird is not a pure Rosy-billed pochard but a hybrid. Possibly a cross with Red-crested pochard. Note the brown tinged back and the black undertail coverts.
 
Agree this is a rosybill x red-crested pochard Hybrid.

This seems to be quite a common hybrid in captivity and as escape (or bred in the wild involvng escaped rosybill?)

One in the wild , Utrecht, Netherlands
https://waarneming.nl/fotonew/1/15660261.jpg

another one, Netherlands:
https://waarneming.nl/fotonew/9/6180499.jpg


Regents park, London
https://www.flickr.com/groups/444365@N25/discuss/72157626256487610/

one more, from France I think:
https://i.ytimg.com/vi/LPcFs3RfHMs/maxresdefault.jpg

Best Regards, Jörn
 
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