All peanuts are ground peanuts

There are a lot of crows in my neighborhood. Crows are famous for being clever and I thought it would be nice to make friends with them. So I’ve started, when walking the dog, carrying peanuts to give them in hopes they will remember me and become more familiar. My wife had no problem with the “I’m trying to make friends with crows” part. She simply asked if I offered the peanuts shelled or unshelled. Totally reasonable question, but it froze me. I couldn’t answer; I suddenly noticed that either term could signify either state of the peanut in question.