for those wondering how to establish trade relations with crows:
- feed crows food A regularly
- when crows decide to bring you gifts, feed them food B
- when crows bring you different categories of gifts, feed them a food-per-category, ex: food C for jewelry, food D for paper money, etc
- crows will recognize these exchange patterns and opt to bring you things in order to acquire desired treats
good luck! 🐦