Birdwatch Ireland, the National Parks and Wildlife Service and scores of amateur enthusiasts over this weekend will try to count every single visiting swan as part of a major pan-European effort which takes place every five years.
It will not only monitor flock sizes but lend valuable insights into global warming.
Roscommon man Brian Burke from Birdwatch Ireland is co-ordinating the survey and he spoke to Joe Finnegan on the JF Show this morning.
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