Question: How many times does a hummingbird heartbeat per minute?
Disambiguated questions and answers: question: How many times does a hummingbird's heart normally beat per minute?
When a hummingbird is cold, how many times does a hummingbird's heart beat per minute?
During rest, how many times does a hummingbird heartbeat per minute?
answer: 1260
50-180
250
Natural Questions answer: 1,260 beats per minute (from the Wikipedia article "Hummingbird")