Crows are known to recognize and remember human faces — but do they intentionally leave gifts behind for people who are friendly to them? Do Crows Leave Behind Gifts For Humans? Given this, some researchers say it’s technically possible that crows may be intentionally leaving gifts for those who are kind to them. In captivity, New Caledonian crows have also been observed assembling separate components together into long, compound tools. But do they purposely leave gifts for humans who feed them?