City Nature Challenge 2026

In the organizer's words:

What is the City Nature Challenge?
The City Nature Challenge (CNC) is an international competition in which citizens from all over the world collect photos of wild animals and plants during a bioblitz. Take part and upload your finds to the iNaturalist app!

Come along on an observation tour!
Saturday, April 25, 10 a.m. with Dr. Karina Brandão in the Loki-Schmidt-Garten (Klein Flottbek)
In the Loki-Schmidt-Garten, we will go on a butterfly tour together during the City Nature Challenge and record what is otherwise often overlooked. Every observation counts - and makes visible how diverse and worthy of protection nature is right on our doorstep.

Registration: veranstaltungen-hamburg@leibniz-lib.de