I had the pleasure of visiting of visiting both zoos although Prague has been a couple of years ago. Prague has a great collection and I truly enjoy a lot of the enclosures in the form of the cliff aviaries - Sichuan building and the lorikeet row (and I'm still looking forward to see the new parrot house). Leipzig is a bit of a let down. The birdhouse is relatively small with some gems like the Blue-headed quail-dove but overall it is just ok. Godwana land has a nice collection, but still not packing the punch that some other halls like Burgers' have collection wise. I think this is the one category (together with reptiles) that Leipzig is just ok and therefore not in the same league as Prague.