I've just picked up this thread. I saw this bird last Friday week (2nd Dec) when it was knocking about with a couple of Mealies and some Lessers. My initial reaction was that it could be Coue's but longer views made me re-evaluate it. As it was interesting I spent quite a bit of time with it and shot off a few hundred photos. While it does have quite a few pro-Coue's features including:
1. Nearly (but not completely) white rump
2. Single dark streak on v white UTCs
3. That 'chamois leather' colouring on face and upper breast.
But longer views showed:
1. Real warm tones in the mantle
2. Ground colour of flank streaking is darker than any Coue's I've seen
3. Long billed bird and overall face shape doesn't look quite right
Individually the anti-Coue's points above may not be deal breakers, but taken together they seem (at least to me) to push it into the Mealy bucket.
Some photos attached showing warmer mantle and flank base colour (as well as rump and UTC patterns).
Some more detail and photos
here.
Was I just being too cautious? Any views?
Cheers
Matt