How many times does the black-chinned hummingbirds wings beat per second?

That will depend upon the particular species of hummingbird. North American hummingbirds are said to beat their wings around 53 times per second during normal flight. A straight conversion to per minute or per hour would be about 3180 beats per minute or 190800 beats per hour. It is unknown if they can maintain it for that long. Larger hummingbirds generally have fewer beats per second and smaller ones have more.