This is perhaps the most surprising outcome from your (CGSwans') ranking to me: it follows that your top three zoos worldwide are all European.
I see how you infer that, but I'm hesitant to agree. My visits to San Diego and Chester aren't comparable: when I went to San Diego I'd been to only about ten other sizeable, conventional zoos. When I say it was 'revelatory' that was partly because it was where I saw my first okapi, hummingbirds, pangolin and bonobos (and I could rattle off a different list for Singapore). By contrast, by the time I made it to Chester I had about 65 roughly comparable zoos to contrast it with. So the two visits are simply different experiences, and I won't feel fully confident splitting them until I get back to SD a second time.
There's also trouble comparing Bronx with Europe, too. My visit there was rushed, a bit stressed and slightly disappointing because my imagination of what Bronx would be was out of kilter with what Bronx *could* be. I feel reasonably confident that if Bronx were in Germany it would be at least in a discussion of the top three in Europe, but I'm reluctant to try to estimate precisely where.
At the same time, I don't want to disavow the prospect that those first three European collections *would* be my global top three, either. Only that I'm not super confident making the call.
These two assessments I feel many share, and each on its own seems reasonable to me. But there is an intriguing double-standard in their combination that always gets me: if the ape house is a skeleton in Zurich's closet, then imo Berlin is an entire skeleton closet with enclosures in entire sections not only small and lacking in natural features, but also largely deprived of adequate enrichment.
I agree with you, but zoochatters in particular are prone to rating zoos more highly if they can see loads of species (and rarities in particular).
Zurich's ape house is by far not the worst ape house I saw in Europe, but it's a long way from the best in a zoo that otherwise has consistently elite exhibits. It gets criticism out of proportion to its objective standard because its relative standard (compared with the rest of Zurich) is so poor.
There aren't all that many zoos I've placed below Berlin that I consider to have a higher mean standard of enclosure than Berlin. Rotterdam, Nuremberg and maybe Leipzig, but each zoo also has weaknesses among other factors I take into consideration. Nor are they are miles ahead, whereas I'd contend that Chester, Burgers and (ape house aside) Zurich are. That's why i never had any difficulty settling on my top three, and wrestled a fair bit below that.
I guess that all depends on what circles you move in.
I only joined ZooChat just over a month ago, and therefore what I have heard has not come from this forum.
So before this forum, it was pretty much all I ever heard!
And that's fair enough. Welcome to the world's nerdiest parlour game.
I've tried to avoid the hypocracy, as I view it, of allowing mammal-heavy zoos whilst eliminating Walsrode etc. A true heavy-hitter has a well-rounded collection. I concede that some of the above may suffer a little aquatically.
I see where you're coming from, but I think there's an important difference. Nuremberg - about as mammal-centric a zoo as I've visited - still markets itself and is popularly perceived as a 'zoo' in the conventional, ABC animals sense. We notice that it has an unbalanced collection, but I doubt many other visitors do. Walsrode - and Apenheul and Oceanografic - have a consciously specific focus. So Nuremberg makes my cut whereas others don't, but its weakness outside mammals is relevant and counts against it.