Kakapo
Well-Known Member
Appart of the Wuppertal's barn swallows, that I saw recently (last August) sharing their enclosure with Pied Avocets, also Cañada de los Pajaros in Spain keep captive Barn Swallows. When I was in Plzen zoo, the aviary with carmine bee-eaters, common hoopoe and three-banded plover also hold House Martins. Years ago, when ISIS was public available, "Caprimulgus argus" (synonym of Eurostopodus argus) was listed for some Australian zoo I don't remember, but probably is just a rescued bird. Non birds, but aerial feeders too, are the insectivorous bats, various species of which was kept at diverse European zoos according to Zootierliste, I remember seeing the sign (but not the bats) of horseshoe bats in Plzen zoo subterranean exhibit.