The account that you formerly used to enter stag beetle transect data will no longer work but after creating a new account you will be able to adopt your former transect and (in autumn 2021) see, edit and download all the transect data of previous years. In case you already have an account at Waarnemingen.be, Observations.be, Waarneming.nl or Observation.org, you can use the same login codes.
Otherwise, you need to sign up here.
The application will ask for your country. This information is used to show you the right locations and the most convenient map zoom.