Curassow

The management said at the time they were unable to identify this immature curassow - perhaps Zoochat members could help?

in 2008 it was labelled as a Crax alberti

Thanks but this photo was taken in 2010. I've been looking for photos of Crax alberti but can only find adults and very young chicks.

The bird I saw in 2008 was also immature, but I would indeed be logical that this would be another bird... Zootierliste lists Haus des Meeres as having kept Crax alberti till 2011....

Well that's the best evidence i've heard - thanks!

That was the logic i was following but the subsequent answer seems to clear things up a bit. Would still like a photo of an immature one. I actually own a copy of Delacour's 'Curassows & Related Birds' but it's hidden away somewhere and i can't find it. I seem to recall it included illustrations of chicks and immature birds.

Venezuelan blue-throated piping-guan
(Pipile cumanensis cumanensis)

This is not a pure piping-guan, which as immatures have bare face and crown color similar to adults. However, since it has a white wing patch there is some piping-guan blood in it. Intergeneric hybrids are well known in the Cracidae family and this is a hybrid, probably Pipile X Crax. Incidentally the head shape and crown feathering of this bird is quite similar to some other Cracidae hybrids I have seen photos of. The pure black plumage (without any brown) also suggests this is an adult rather than an immature.

They had a pair of mature Piping Guans in the collection so this could explain it although i sent them a photo and asked for identification and they said it was an immature bird and they didn't know what species it was. I suppose they might have obtained it from a dealer.

Thanks for the id.