Bird migration timeline
Arrival date information is collected from BirdTrack which is run by BTO on behalf of BTO, RSPB, BWI & SOC. Information about nests is derived from the BTO/JNCC Nest Record scheme.
Photographs were kindly provided by Jill Pakenham, Edmund Fellowes, GrayImages.co.uk, Derek Belsey, John Harding, Tommy Holden, Ron Marshall, Glen Bishton, John Bowers, Al Downie, Ron Marshall, Mike Weston & Neil Calbrade. Maps are from Time to Fly by Jim Flegg.