I have to be honest: I do not remember exatly what kind of birds, maybe ducks or something like that.
I am not sure because it was some years ago and I help my uncle in his study.
Maybe you have better information or more details.
You are viewing a single comment's thread from:
What time of the year?
Early summer: maybe late June or the first days of July.
There are many bird species that come through Bulgaria from spring to fall, and in Sofia I see a lot of swallows etc., but it depends on where you went from Sofia.