British Trust For Ornithology

Opticron has a long standing working relationship with the BTO both formally through the Trusts Business Partnership Programme and more informally with many of its staff and volunteers who own, use and occasionally break their equipment!

A long standing believer in birdwatchers giving something back to their hobby, we have been actively recruiting new members since 2005 through our Free Membership Scheme as well as supporting individual projects such as the Trusts flagship study Bird Atlas and the enormously successful Cuckoo Tracking Project.

For more information about the BTO visit