Trends in the abundance of farmland birds: a quantitative comparison of smoothed Common Birds Census indices
Author(s): Siriwardena, G.M., Baillie, S.R., Buckland, S.T., Fewster, R.M., Marchant, J.H. & Wilson, J.D.
Published: January 1998
Journal: Journal of Applied Ecology Volume: 35
Digital Identifier No. (DOI): 10.1046/j.1365-2664.1998.00275.x
BTO Data Reports
Our reports provide rigorous scientific information to inform Environmental Impact Assessments in the UK.
Waterbird ID training (2 sessions, Wednesdays 7pm)
This course involves two weekly online sessions of about 1 hour 45 minutes, with a trainer:participant ratio of about 1:30. Participants' microphones are muted during the sessions but there is a large interactive...