For me 2021 was very good, in fact my record year: 74 visits in 56 zoos (11 in Poland, 3 in Czechia and 42 in Germany) 36 of them are new to me. The most visited, as always, was Wrocław Zoo - 11x.
New two zoos in Poland are:
Leszno
Sosnówka (newly opened small bird garden)
and during big september tour in Germany 34 mainly small and medium zoos:
Limbach-Oberfrohna Tierpark
Altenburg Inselzoo
Hirschfeld Tierpark
Mohlsdorf-Waldhaus Tiergehege
Eisenberg Tiergarten
Worbis Bärenpark
Meißner Wildpark
Kassel Zoo
Sababurg Tierpark
Bochum Tierpark
Dortmund Zoo
Hamm Tierpark
Höxberg Wildgehege
Delbrück Tierpark
Heiligenkirchen Vogelpark
Berlebeck Adlerwarte
Bad Pyrmont Tierpark
Herford Tierpark
Schwerin Zoo
Rostock Zoo
Stralsund Ozeaneum
Stralsund Zoo
Greifswald Tierpark
Marlow Vogelpark
Güstrow Wildpark
Grabowhöfe Tierpark
Eberswalde Zoo
Angermünde Tierpark
Oderbruch Zoo
Schorfheide Wildpark
Hohenbruch Wildtierpark
Germendorf Tierpark
Frankfurt Oder Wildpark
Eisenhüttenstadt Tiergehege.