1. Institute of Biological & Environmental Sciences; School of Biological Sciences; University of Aberdeen; Zoology Building Tillydrone Avenue Aberdeen AB24 2TZ UK
2. Scottish Chough Study Group; Kindrochaid, Bridgend; Isle of Islay Argyll PA44 7PT UK
3. Future Farming Systems; Scotland's Rural College; Auchincruive Ayr KA6 5HW UK
4. College of Medical, Veterinary & Life Sciences; University of Glasgow; Graham Kerr Building Glasgow G12 8QQ UK