Please only record Swifts flying around roof height. Nesting or prospecting Swifts form ‘Screaming Parties’ and fly fast, low and noisily around their nesting sites.
Screaming Parties seen and heard in May are likely to be experienced breeders, but in June and July are joined by younger birds pairing up for the first time.
Please don’t report sightings of birds higher in the sky or feeding over water as they may be from some distance away.