a pair of columbian ground squirrel urocitellus columbianus standing at the entrance of its burrow in ernest calloway manning

animal animals awaken behavior british burrow canada checking close colony columbia columbian columbianus curiosity curious cute day destinations dog entrance family grass ground guard guardian hibernation holarctic looking mammal manning marmot nature north one outdoors park prairie rock rodent sentinel sleepy spring squirrel squirrels testing the travel unity urocitellus vertebrate waking whistle wild wildlife