Boris Johnson’s partner Carrie Symonds is expected to give a short speech on the environment this week – marking her first public comments since she entered Downing Street.
The former communications boss at Conservative Party headquarters and the UK’s “first girlfriend” will give a five-minute address at a bird-watching conference on Friday.
She will talk about her support for conservation before appearing on a panel alongside experts such as Chris Packham, the presenter of Springwatch.
Tim Appleton, the founder of what he called the “biggest ecotourism fair in the world” known as Birdfair, said he was “over the moon” Ms Symonds would appear at the event.
He added her speech was expected to cover why she supports conservation, in particular ocean projects.
Public relations expert Ms Symonds, 31, resigned as director of communications for the Tories last year.
Today she is a senior adviser at Oceana, a US-based environmental campaign group, working with its marketing operation in London.
A profile on the charity’s site describes her as being “passionate about protecting the oceans and marine life”.
She was thrust into the public eye for the first time during the Tory leadership race, when police were called to her and Mr Johnson’s home.
At the time, the Guardian reported officers responded to a call from neighbours who said there had been a loud altercation involving screaming, shouting and banging.