Pictures from 2009
http://waarneming.nl/foto/view/663650
http://waarneming.nl/foto/view/663648
http://waarneming.nl/foto/view/663425
Picture from 2005 from the same place (can this be the same bird?:
http://waarneming.nl/foto/view/2793
In all pictures the bird does show a grey rear end and does not show the dirty cheek patch of hottentot teal- compare with this hottentot teal:
http://waarneming.nl/foto/view/299239
on the other hand the bill is all blue and looks not as massive as in silver teal (or puna teal )
compare with silver teal:
http://www.pbase.com/jaap_vink/image/109320070
and with a hybrid silver x hottentot teal:
http://waarneming.nl/foto/view/7789
Nobody with experience of these species to comment?
Jan Harteman, where are you?
Leo, I don´t think the bird you linked is a hybrid - it looks more like an Intersex. I explained and gave a link in the thread referring to that bird.
For the bird I linked here, I also asked Ian Gereg, a waterfowl breeder from USA about his thoughts.
He also thinks that bird is Hottentot taling x Versicolortaling (Hottentot teal x Silver teal), he also specifies that he assumes this bird here to be a male while the Texel bird to him seems to be a female hybrid (or perhaps a young bird).
He also wondered about the unusual amounts of hybrids we have here in middle Europe among the probable escapes and states he thinks there must be some breeders who just release hybrids.
That´s in line with my own thoughts.
Sorry for the very late comments... I have been quite busy for the last weeks.
Anyway, I guess it might be a hybrid hottentota x versicolor.