Last week our eagle-eared story developers noticed a strange sound coming from our barn owl nest. It's left the team a little flummoxed as to exactly what it is. So we thought we'd ask you to help us work it out. Play the video below to have a listen. If you think you can identify it help us solve the mystery by telling us in the comments below.
Update 9 June: With your help we think we might have solved the mystery: the sound was made by a barn owl nestling.
Welcome to the BBC Nature UK blog, the home of Springwatch and Autumnwatch. It's a place for us - and you - to talk about the UK's wonderful riches of nature right across the year.
Please note: You must be 16 or over to comment on this blog.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.