I heard a bird in Lagan Meadows, Belfast. Descending calls with large space between.
The Merlin app couldn't identify it. The audio may sound a little quiet but in person the call was quite loud and carried a decently far distance.
The audio recording is at the bottom of this checklist:
https://ebird.org/checklist/S141274359
Under passerine sp.
My thinking is that it's a chick, maybe a thrush chick? It was coming from dense bushes. No visual at all.