Whilst not the post promised, I thought the following would be of interest to those who follow farmland birds. The link shown below is courtesy of the Campaign for the Farmed Environment*. As an area of focussed research by the British Trust for Ornithology in the coming years, I hope the video clips contained are enlightening for all.
Posted by: Tony William Powellon
*I have no affiliation with this company, other than receiving their informative newsletters.