In retirement, and with 50 years' experience, I want to create a captive bred population of native species, maintained within a studbook, with cultural and conservation benefits, at no cost to public funds, and NatureScot think that using non-native species is a satisfactory alternative, contrary to the GB Invasive Non-Native Species Strategy and Covenant of Social, Economic and Cultural Rights. I'm being denied my cultural right of sustainable access, when other cultures are granted theirs.