In 2019 Nils Bouillard was the first person to complete a Big Bat Year. During this interview (in 2020) we talk about his background & the lead up to the big year, as well as some of the experiences encountered whilst he travelled the globe in search of bats & documenting challenges in their conservation. We also chat about his initial thoughts on  doing a book all about it, which is now available: Big Bat Year - A Conservation Story