Today during approximately two hours, from the 8 pm, a constant passage of Common Swift (Apus apus), south-east direction.
I have calculated that approximately would pass 500 birds
Here you can find lots of information of Swifts.
Today during approximately two hours, from the 8 pm, a constant passage of Common Swift (Apus apus), south-east direction.
I have calculated that approximately would pass 500 birds
Here you can find lots of information of Swifts.