Of course this is an extreme crop and the bird was very far away, but can anyone tell the species? It doesn't seem to quite match any as far as I can tell.
I think it must be a blue-eared barbet, although the red area appears excessive. It may be the angle of the head. However the general colour combination is right with the blue throat, blue behind the eye, and the yellow patch under the eye.
I think you must be right, although there seems to be way more red than I can see in any illustrations or in any pictures in google. The size is right too because there were a number of Blue-throated Barbets around and it looked about the same size.
The other thing that I was considering because it seems to have the most red is Red-throated Barbet, however I have just noticed that the field guide says up to 760m but this was in the upper campsite so too high for that species (and of course the red area is in the wrong place for that species).
I suppose this individual doesn't seem to be showing that much more red than, say, the one in this picture.
"HBW indicated that birds from S Myanmar and SW & peninsular Thailand are often treated as race stuarti but are apparently intermediates between cyanotis and duvaucelii" (duvaucelii is the peninsular Malaysia (sub)species which is split by HBW).
The fact that it is intermediate does suggest that the extent of red coverage could be more variable.
