We use a Lucky Duck, works great. If you are getting into it serious, you will have a few calls so they dont get accustomed to one call. Foxpros are really popular. I'd get NV with IR light vs red/green. Thermal is best if you can swallow the "buy once, cry once". If you choose thermal, dont get too excited about zoom. Its all pixilated and grainy unless you are buying a $10K thermal. Most shots are <100 yds anyway if you are doing your part. Hunt cutovers, edge of fields, hide good and watch your wind. They can smell ya.