aythya ferina การใช้

• On occasions the Common pochard ( " Aythya ferina " ) population, which is one of the largest in Ireland, has exceeded the threshold for international importance . ( i . e . 3, 500 individual fowl ).
• Much of the management work carried out in the nature reserve is aimed at encouraging ducks to breed, and small numbers of tufted duck ( " Aythya fuligula " ), common pochard ( " Aythya ferina " ), common shelduck ( " Tadorna tadorna " ) and gadwall raise broods most years.