28.08.2015 y. Very interesting trip report by Dr. Wolfgang Fiedler, bird scientist
It was in the evening of the 18th of August 2015 when we returned in the early evening from stork observations in the area around Dobritch. We came just in time to see how a small flock of migrating storks (around 20 individuals) had to come down very rapidly due a fast approaching thunderstorm. They came down from considerable height almost like parachutes with half opened wings and hanging legs. The storks were just over the garden when the first strong wind gusts started and almost at the same time it massively started raining (for the first time after many weeks, as we heard later). The storks landed in the trees, including the dead one with the roller nestbox and on the towerhide. However, the wind was too strong and they could not stand stable there and flapped into other trees on the left. Only one individual fighted hard against the weather and stayed on the roof of the tower until it was too dark for us to see what happened. Later I saw one individual resting on one of the street lamps, the others were obviously more in the backyard area. The storks left the place very early next morning, we could not find them again. This is rather unusal, normally the morning start of migrating storks is rather relaxed and they stay close to the night roosts before thermals start to carry them on.
I also add a map that nicely shows that your cottage is indeed very close to the “migration highway” of eastern Polish (and presumably many other) storks