I never got around to doing this. Ok here it is. Tait blocks (available at Mikes Falconry), directly quoted from the sizing chart 00. male kestrel 0. male sharpshin, female kestrel 1. male columbarius merlin 2. male richardsons merlin, female sharpshin 3. female columbarius merlin 4. female richardsons, large female columbarius merlin 5. large female richardsons merlin 6. small male coopers hawk 7. male coopers hawk, small male merlin/peregrine 8. male merlin/peregrine 9. female coopers hawk 10. female merlin/peregrine, small male barbary 11. male barbary 12. large male barbary, male brookei peregrine 13. small male prairie 14. small male peregrine, male prairie, female barbary, male lanner 15. male peregrine, male gyr/barbary 16. female prairie, large male gyr/barbary, female lanner, male goshawk, male harris 17. female peregrine, small male gyr/peregrine, large female prairie 17.5 female peregrine, male gyr/peregrine 18. female goshawk, large male gyr/peregrine, large female peregrine, female harris 19. male gyr/saker, large female peregrine, female gyr/barbary, female saker 20. male gyrfalcon, female gyr/prairie, large female saker 21. large male gyrfalcon, female gyr/peregrine, female gyr/saker 22. female gyrfalcon, small female red-tail 23. large female gyrfalcon, female red-tail, male ferruginous hawk 24. female ferruginous