Woda i las dla rybolowa Pandion haliaetus. Wymagania siedliskowe gatunku

On the present territory of Poland during last 100 years osprey decreased its population from 300 couples to 30 in seventies of XX century. Considerable improvement of the environment condition, especially clarity of water in eighties and nineties of the last century, resulted in number increase of breeding couples up to 70 at the turn of the century. However, in the last few years we observe rapid regression of the species and decrease in number of breeding couples to 30–35 couples in 2007.