Agents' Preference Structure.

Agents: : Gamekeepers and Red Grouse hunters; : Hen Harrier conservationists; : Golden eagle conservationists. Strategies: : Cull Hen Harriers (or not, ); : Introduce diversionary feeding for Hen Harriers (or not, ); : Introduce Golden Eagles into Hen Harrier habitat (or not, ). Numbers represent purely ordinal preferences over outcomes (where 1 is most preferred, 2 the next most preferred, and so on). See Appendix S1 for Nash equilibrium analysis and Appendix S2 for Pareto–efficiency analysis. For a justification of the ranking for each stakeholder, see the text.