Crimson x Adelaide Rosella?

To: canberrabirds chatline <>
Subject: Crimson x Adelaide Rosella?
From: Con Boekel <>
Date: Sat, 11 Mar 2017 09:52:37 +0000
Hi everyone


Several people responded to my post with an image of a bird, taken in Turner, 
which I suggested might have been a Crimson Rosella with a bit of Yellow (or 
Adelaide) Rosella in it. David Rees wrote of hybrid birds he had seen in Albury 
and Noel Luff reported the Gundagai birds.

Leo Joseph wrote the following:

'The local Canberra Crimson Rosellas always look a bit different at this time 
of year as they moult their worn plumage. I always do double takes on them at 
this time of year but I think moult explains a lot of their suspicious 
appearance. The bird in the photo shows lots of signs of moult. So I suspect 
that it is more that than an indication of Yellow Rosella genes coming this 
way. That said, we have known since the 1970s that Rosellas along the western 
slopes of the Divide more or less along the Hume Highway do indeed present 
pretty good evidence of being Adelaide-like Rosellas but I stress they are not 
exactly like Adelaides. They almost certainly reflect hybridisation between 
Crimson and Yellow following habitat disruption and can easily be seen in 
Gundagai. We have pretty good evidence on that now. But you don't have to go 
far east or west to get back into pretty straightforward Crimson and Yellow 
Rosellas, respectively.
I think this is a reasonable assessment and do feel free to pass it on.'



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