According to the British Trust for Ornithology (BTO) cuckoo numbers are in rapid decline and having already nosedived by 37 per cent between 1994 and 2007, they could soon be put on the endangered species list.
That's why we're keen to find out more about your experiences of the cuckoo's call.
When did you last hear it and where were you? Have you heard the cuckoo this year yet? Are you worried you may never hear it again?
You can contribute by clicking on the 'comment' link below. Don't worry if you haven't registered yet, it's a quick and easy process. Of course, you're also welcome to email your comments to us.
Want to know more about the cuckoo?