The Cambridge-based agency is developing a PR campaign to help increase the number of people signing the charity's Letter to the Future petition. The campaign aims to put pressure on politicians to provide a healthy natural environment for future generations by tackling climate change.
More than 150,000 people have already signed the petition, but the charity has hired Ware Anthony Rust to put pressure on UK political leaders to pay attention to nature in their election campaigns.
Paul Lewis, the RSPB's head of PR, said: 'We need as many people as possible to sign up to the Letter to the Future Campaign.
'Our belief is that Ware Anthony Rust's creative impetus can help complement the great work of our own in-house team to reach an even wider audience.'