Do you have this map out of a flyer?
On the front page of my flyer (with a peacock photo), above the 'owl' logo Zoo/vivarium, in the upper right corner, is mentioned 'Stand: 12/2021'.
Does yours?
There're some slightly differences between your map and mine: the animal logo's on the map are positioned a little different. And instead of guanaco, there're vicuna, which came in 2019. The last guanaco died in 2018 (ZTL).
So it's between 2014 (opening Maria Börsig Haus with callithrids) and 2018.
In 2015 they opened an petting enclosure for guinea pig on the right side of the squirrel monkey outdoor enclosure (green meadow, which is on my map accessible, just above the mouse house). This guinea pig enclosure is marked on my map, but not on yours.
In 2016 a Biergarten opened in the purpel square under the Cafe Eulenpick, which also not marked on your map.
So both new developments 2015-2016 are not on your map; my guess would therefor be: 2014.
Yes, the map is in a fold-out flyer/pamphlet, although there is no date listed anywhere. I like your comments and this seems that this is a fascinating zoo. It's name implies that it might be a small place, but the map appears to be that of a proper, medium-sized zoological facility.
You could be a bit disappointed on that: it took me not much more than 1 hour to see everything (after a long night driving and full day in Frankfurt zoo).
The houses near the entrance f.e. (macaques, civet/otter, tropical house and watvogel aviary) all take 5 minutes each to visit.
The terrarienAquarienhaus is the only larger building, with good sized enclosures.
Both parrothouse and tapirhouse are not accessible.
However, it's a nice place and ideal to combine with a larger zoo nearby.
It's remarkable how deceiving many zoo maps are. This certainly looks like a place that would take more than an hour to tour but that seems to not be the case. The fold-out map/flyer for Omaha's Henry Doorly Zoo is fairly tiny, giving the impression that it's a small zoo, when in fact it's easy to spend an entire day there.
