For an ornithologist who is making a significant contribution to the field, typically someone who gained a PhD between ten and twenty years prior to the award being made.
For a bird club or group that publishes a book, completes a study or conducts any other exceptional activity in the preceding calendar year that advances knowledge about birds.
an individual scientist whose work on the international stage has had significant influence on British ornithology, especially as reflected in the work of BTO scientists and volunteers
an individual (or group of people) under the age of 21 who has/have made a significant contribution to BTO bird monitoring schemes and shared this information with their peers