Have you heard of Bird Track?
Their website describes it as:
BirdTrack is an exciting project, through a partnership between the BTO, the RSPB, Birdwatch Ireland, the Scottish Ornithologists' Club and the Welsh Ornithological Society, that looks at migration movements and distributions of birds throughout Britain and Ireland. BirdTrack provides facilities for observers to store and manage their own personal records as well as using these to support species conservation at local, regional, national and international scales.
The idea behind BirdTrack is that if you have been out birdwatching anywhere in Britain and Ireland, or simply watching birds in your garden, records of the birds you have seen (or indeed have not seen) can be useful data. Thus the scheme is year-round, and ongoing, and anyone with an interest in birds can contribute. Important results produced by BirdTrack include mapping migration (arrivals and departures) timings and monitoring scarce birds. We know very little about the timing of arrival and departure of winter visitors and this is just one area in which BirdTrack will provide useful information. There are also many scarce birds where we would like to know much more about their populations.
The beauty of the system is that any sightings logged on the reserve at Fen Drayton Lakes are automatically sent to our website on the 'Recent Sightings' page, so can provide the latest up to date information.
It is a great way to track the migration movements and distribution and can really help us to understand better the timings of these events.
Lots more information here: http://www.bto.org/volunteer-surveys/birdtrack/about
It's easy to register, so give it a go and help us to track the movements and sightings to increase our knowledge and understanding.
Pete