I do, but I can't say it is complete due to the fact that I saw many unsigned birds and the large size and large amount of cover in the Rainforest Hall gives lots of hiding space. This is all the signed free-flying birds and other ones I saw:
Black-necked Grebe, Lesser Whistling-duck, Black-necked Stilt, Black-headed Bulbul, Wisol Wattled Brush-turkey, Crested Wood-partridge, Green-collared Pheasant-pigeon, Victoria Crowned Pigeon, Nicobar Pigeon, Sulawesi Ground-dove, Black-naped Oriole, Great Blue Turaco, Bar-shouldered Dove, Emerald Dove, Great Cuckoo-dove, White-breasted Ground-dove, Asian Fairy Bluebird, Golden-breasted Starling, White-eared Catbird, Collared Kingfisher, White-rumped Shama, Red-whiskered Bulbul, Blue-naped Mousebird, Brazilian Tanager, Scarlet-headed Blackbird, Chestnut-capped Laughingthrush, Red-billed Leiothrix and Java Sparrow.
There were also a dozen seperate aviaries around the Rainforest Hall which held:
@Daniel Sörensen I saw them at the Berlin Zoo. According to ztl, four other collections in Germany hold them and someone who visited Walsrode in September as well claims they saw them.