Bird Atlas 2007-11 was the biggest ornithological challenge that the BTO, BirdWatch Ireland and SOC have ever taken on.Find out more about how it was funded from the links below.oystercatcherBTO Bird Atlas 2007-11 Appealkingfisher photograph by John Harding Species Sponsors corncrake photograph by Jill PakenhamBird Atlas 2007-11 Supporters BirdWatch Ireland
