I neighboring Malaysia, where birdshops stock even more munias, most are sold to Chinese for release in Buddhist ceremonies aimed at bringing good luck for the good deed. Very silly, as birds are specifically captured to be sold for release, and many die before and after releasing anyway, so that 'charitable' tradition actually harms birds a lot.
The luckiest ones might be bought for release here, too. But Indonesia's Chinese population is smaller and less traditional-minded than Malaysia's.
As these pics were taken at a whole-sales seller, they will mostly go to smaller sellers at markets. And then... As I had said, the luckiest ones might be bought for release, the unlickiest ones as toys for kids (we had discussed this before). The ones in between might be bought as pets. I am not sure how lucky those are, as typically pet finches are kept in cages sized ca 20*20*30 cm, often smaller.
Crazily, some people buy them hoping to train them to sing as canaries!
Talking of cage size, what is seen as suitable seems to be based more on the country's tradition than anything. I noticed US finchkeepers tend to use smaller cages than Europeans, and Asians use even smaller ones.
And all think their size is fine.
Apparently these nuns breed best in an aviary, but sometimes good pairs can breed in cages. Apparently breeding success is greatly increased if one buys a flock of birds still in juvenile color, puts them in an aviary and lets them choose their own partners.
While Asian imports are generally a no-no these days, the fact that strawberries were imported from Singapore to the US in recent years shows it can still be done.
Maybe you should lobby the importers to bring these in - if they see enough demand, thery might try.
And should they come in, they should be bought in groups, not pairs, and put in aviaries, not cages, if they are to be established by breeding.
Wish good luck to all those hoping to get some!
@lovezebs, they are caught with nets. Generally considered common, they are nowhere as common as spice finches and Javan munias and are now rare in many areas, sometimes absent from the markets for weeks.
@Marius, want to barter some for Violet-eared waxbills or Rosy twinspots, please?
