The first aviary in Niendorf's row of aviaries for any exotic bird in their collection that isn't an owl, a bird of prey, a parrot, a cassowary, a flamingo, a crane, a duck/geese/swan, or a stork/heron/ibis.
This one houses black-and-white-casqued hornbills and silver pheasants.
Note: As the signage at Niendorf was horribly out-of-date (at almost all mixed-species exhibits, the signs mentioned species that clearly weren't there or failed to mention that species that clearly were there), I'll only note the species I saw and not the ones mentioned on the signs.
