This Yellow Rumped Warbler has been snacking on peanut butter and has been making it a regular part of its diet all spring and summer. Later, obviously raising young, it would gather blobs of it like in this photo, and take it back to the nestlings. In the last few days, if there is no peanut butter out, it will follow me around the yard waiting for me to put it out. In fact, it's making itself obvious and visible to me in order to get my attention, and once I do see it, I do its bidding. lol