This little hummingbird is still hanging around the yard when all others have left. Is it a straggling young Black-chinned or something else? I’ve posted pictures of this hummingbird so you can take a look. Under each picture I’ve commented about its field marks such as wing to tail ratio, bill shape, lack of buffiness, faint gray supercilium, etc., that might point to something else other than Black-chinned. Please let me know what you think it is. The white on its forehead is probably frost or pollen.