I think other zoos should have exhibits like this. Unfortunately I only saw the dove, cordeon bleu and mannikins (photos in this gallery) plus the white-eye, melba finch and a francolin. The other species may have been there but the vegetation was too thick to be sure. I have never seen a purple grenadier or a violet-eared waxbill. African aviary next to Meerkats, Newquay, 28th November 2014.