At least some of them. I've got a hummingbird who's been hanging around my back porch for a couple of weeks that just can't seem to get his shiRt straight. There's a hummingbird feeder hanging right there but he insists on probing the soffit, nearby leaves, light bulbs, just about anything else to see if those things taste good too. He's even hovered about a foot away from my head checking me out. Frankly I'm surprised he's still alive. Either he's a few fries short of a Happy Meal or he's like a toddler and has to put everything in his mouth (so to speak) to figure out what's good.