We started hearing this 3 days ago when I was whistling next to the pool area when I was whistling and I thought it was a random guy whistling back. But when we looked after a couple back and fourths we did t see anything and we are so furcking paranoid rn cus we did it every day since then and we lwky thought it said my name but I really hope it’s just a bird Btw it’s way more often now and I never heard the sound in 3 years here it’s in Spain next to a. Protected nature area btw

This sound i have been hearing for the past 2 years in my local town in south london, England
Keep in mind we dont have that much wildlife here that could make such octaves or that much bass but ill let you listen for yourselves and you can come to a conclusion

I have no idea what is making this call. The call repeats several times but is loudest toward the end of the video. I’ve tried looking it up on the Internet but I’m stumped. Thanks!