There are currently two long term ringing surveys that allow us to collect more detailed data on survival and productivity allowing us to understand population change - vital information for conservation.
The Constant Effort Site (CES) Scheme monitors a range of passerines in the breeding season and the Retrapping Adults for Survival (RAS) Scheme involves individual projects each collecting detailed information on one species.
Migration blog – Winter
As we get ever closer to the end of autumn the pace of migration steadily slows, and as the daylight hours shorten so does the variety of birds on the move.
Making the most of BirdTrack data
We have been working to produce useful summaries for bird reports using data from the millions of annual BirdTrack records.