Does recording songs of birds require time, skill and patience. Yes, it does. Yet the most persistent ones may be proud of the effects of their efforts - read the article "How to record the songs of birds?"
How to record sounds of nature? How to observe birds and animals without disturbing them? How to take good photographs of natural phenomena? Here are some valuable tips for all nature lovers. more »
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Rook
We all know the rooks, which are very sociable birds, and you are not likely to see one on its own. Their cawing "kaah" call and song of squeaks and croaks can be hear even in big cities.
From 1994 until 2003 in Biebrza National Park 168 scientific enterprises were undertaken. 55 research institutions from Poland and abroad were involved in those ventures.