Hill Munia, Lonchura kelaarti,
Don't know much about this species, have seen some examples but never kept any myself.
They are larger than most, no apparent difference in the sexes....
I believe they have occasionally bred in captivity, but they are not easy to come by here in the UK, possibly they are easier to obtain on the Continent as I have seen them in dealers in Belgium.
But this is another "little brown bird" and as such is not much sought after by any but the dedicated Lonchura enthusiast.........
But you might come across some and here is a picture in case you do.