Wicken Fen bird populations
Peter Bircham

2001
– Songbird breeding census

2004
– The breeding (song) bird population of Wicken Fen

2010
– Thoughts on monitoring populations and suggestions for the
future

2010
–  Is it possible to use year-on-year ringing data to monitor bird
populations?

2012
–  Do nature reserves protect passerines from population declines similar to those in the wider countryside?