Swift season is with us now. They are impossible to disperse and feed over the airfield. We have a fair few Swift strikes but, have never known them to cause any major damage. We always contact the engineers to confirm the findings on the runway and I have never known them delay a flight departure. They usually complain about having to clear up the blood stains. The only time they give any lengthy inspection is on engine ingestion.
We find the odd one on the runway with no strike report. Some with obvious collision damage others that have been hit by vortex. The pilots obviously oblivious to the fact they had a strike.
I'll have a more in-depth chat with the Engineers next time..
