[1] Traill is the former Director of The Pew Charitable Trusts' Australian Outback to Oceans program - joining the organisation in 2007 and leaving in 2020.
[2] Traill has particular interest and expertise in the ecology of terrestrial birds and mammals and landscape-scale conservation of temperate and tropical woodlands and forests.
Prior to joining Pew, he worked for 25 years as a conservation advocate and scientist for Australian state and national organisations.
Traill's work has led to the protection of the Box-Ironbark woodlands of Victoria, the cessation of the broadscale clearing of the Queensland bush,[3] and the creation of the world's largest network of marine parks.
In the 2023 King's Birthday Honours List Barry Traill was made a Member in the General Division of Order of Australia (AM) for significant service to conservation and the environment in a range of roles.