I visited Cologne last weekend, which is always a delight. In the past two years the only new development was a new Red panda and a new Banteng enclosure, which is larger than I expected and could do with some extra hoofstock like Hog or Eld's deer... The Red panda enclosure is huge and could do with some Tufted deer mixed in, to bring some life....
In terms of collection there have been quite some changes, mostly positive. I remains astonishing how many rare reptile species are on display and in the freshwater aquarium section more and more focus is on breeding rare obscure species, mostly from SE Asia.
In terms of mammals there have been some noteworthy losses, including Goitered gazelle, Bukhara deer and Honey badger (fortunately), all these enclosures now stand empty. Goodman's mouse lemur are now on show in the small enclosure at the back of the Madagascar house, but as it is mostly a day time enclosure, try to visit early morning, when the lights are still turned off (though I still didn't see them then...). Hausa genet, Garnett's galago and Geoffrey's cat are all still off-show.
The bird collection got a boost with even more ducks (at least if feels like that). Notable other new species include Little bustard, Orange-bellied leafbird and Philippine scops owl (the latter 2 in the rainforest house). I also noted a new Bulbul species in the rainforest house, but I don't have a clue which species.
Some enclosure pictures are in the gallery:
Cologne Zoo | ZooChat