At minimum some attacks on grownup marmots like groundhogs (Marmota monax) are abortive. Rodents of particularly diversified measurements might be hunted by red-tails, with species ranging in sizing from the 8.2 g (.29 oz) japanese harvest mouse (Reithrodontomys humulis) to marmots (Marmota ssp.), weighing some 3,300 g (7.3 lb) in spring, while regardless of whether they can just take complete grown marmots is questionable.