[["The fasted recorded was a blue-throated hummingbird timed at 1260 beats a minute; the slowest recorded was an ostrich at 107 beats a minute. The bigger the bird, the slower the heart beats. It has been show in some birds during torpor (hibernation-like state) it can get as low as 50 beats a minute.", 41.0], ["The heart rate of birds varies depending on the species. In general larger species have slower heart rates, and smaller species have faster heart rates. The slowest rate it the goose at 113 bpm, which is not so different from a human. The fastest measured was a Ruby-throated Hummingbird at 615 bpm.", 28.0], ["All living birds have a heartbeat.", 16.0]]
how many bird heartbeat
animals,birds,parakeets