Armed with our mobile phones and the ObsIdentify app, we head into the Koeheide in search of crawling, flying, and fluttering creepy-crawlies. We make it a competition to enter as many bugs as possible into the app and learn a lot about the insects in our nature. What do you need? A fully charged smartphone with the ObsIdentify app installed. Make sure you also create an account if you don't already have one in the app. At the start of the activity, we will go over these steps again and set up a group challenge. This way, at the end of the afternoon, we will know perfectly who made the most observations. We will also provide magnifying jars and butterfly nets for those who want to use them.