8 Acknowledgements
We are grateful to Linda Brooks and Philip Lynch ( SHU) and Alan Rothery (Sky High Falconry) for assisting us with provision of data and information during the production of this report. We thank Mick Marquiss, Ian Newton and Patrick Stirling-Aird for useful discussions on Sparrowhawk ecology that contributed to interpretations in this report, and Ian Newton for helpful comments on a previous draft.