Hi all, i have a couple of aviaries with mixed finches- had success with gouldians, stars, parrot finches, ruddies and others in them, but no luck with chestnut breasted mannikins, black headed nuns or painteds. Had a variety of nests, brush and some plants and grasses. Put in a couple of wire mesh cylinders with long course grass in them in each aviary, screwed to wall about chest height, and nesting started that day! Got 6 chestnut breasts, 6 painteds and a couple of bh nuns out so far, with all building/ sitting again.
Such a simple nest but what a difference it makes. The painteds made a platform from mulch and bark on top that their young rest on. The mannikins obviously like the privacy as they burrow in around the side/back of the cylinder.
I have had these in another aviary for years with some success but they were filled with finer grass. I think the longer courser grass loosely packed works better.
If you haven't tried them, I'd highly recommend it

You do not have the required permissions to view the files attached to this post.