The Last Alpine Swift

Although for days the most of the population of Swifts has been leaving us in the direction to Africa, this week still I have been able to observe a flock of 20 birds of Alpine Swift.
It is the first time that I observe this spectacular bird from the same inn.
The flock stayed flying over the inn during half hour, soon to disappear southwestern direction.
The breeding colony is only 6 km. from here.
With this record already they are the 81 species observed from the same inn. Look here.