The frequency and consistency of numbers which I have seen in 2025 has led me to think the colony may be nearer than I have previously believed. The Swift Mapper app. has one nesting reference for Deeside, though several years old. I've been looking in that street, but not seen anything.
Something that might work is to go out with your phone and play calls. If there’s a nest site, someone should answer back! This site’s good: https://xeno-canto.org/species/Apus-apus?pg=2 (the duet calls work well)
Comments