Strandvænget Park is a park in the outskirts of the Danish town of Nyborg. It's not really a zoological institution, but they do keep a small and free-to-visit collection of animals (domestics and standard pet species) in the middle of the park.
@Hvedekorn
'Aviary' is a very generous description of what appears to be some security panels with the tags still in place, cable-tied together; with a net thrown over them..!
Well, I can't say that I'm a native speaker and I've always understood the word aviary as simply a "cage big enough for birds to fly in". Would "coop" be a better word?
@Hvedekorn
That would be the definition of an aviary I guess - but I would not have thought security panels tied together, in a public park, would deserve any formal title at at all!