Eastern - Pale-headed Rosella hybrids?

["Allan Richardson" <>]

Hi Cas

My daughter photographed a Pale-headed individual at Murwillumbah in May 
last year with a lot of red feathers in the breast and head plumage, but 
I've seen Pale-headeds paired up with Easterns on the north-western slopes 
of NSW north of Ashford. In that area it is rare to see Pale-headed Rosellas 
without a few red dots in their head plumage. I've also noticed that the 
contact / flight calls of Eastern Rosellas occurring in more easterly areas 
in central NSW change as you move west.  Eastern Rosellas in the Lower 
Hunter Valley (and I presume in the southeast generally) have a 
"pink-pink.....pink-pink" flight call, while more westerly birds have the 
"chug-chug......chug-chug" calls (please excuse the call descriptions) 
similar to the Pale-headed Rosella.
Regards

Allan