Transect input system

Welcome to the European BMS Transect Walker online.

The map on the right summarises recent recording activity (red symbols for sites recorded this year, blue symbols indicate sites recorded in previous years) and the website includes more detailed reports of recent activity.

Quick Guide

These are the simple steps to get you started with entering data on this system.

  1. Register for an account.
  2. Go to ‘My Sites’ to setup new transect routes, or review the details of existing ones.
  3. Go to ‘My Walks’ to enter the data for your transect routes.
  4. Go to ‘Annual Summary’ to review your butterfly data, and to see what’s been entered for other transects.

Download the full guide to this site here (note that some elements of the guide will change when the site becomes fully live).

Please send suggestions for improvements and general feedback on using this site to