Gyrfalcon

Male performs spectacular aerial displays with dives and 180° rolls. Uses four methods to pursue prey: ''1)'' flying low and surprising prey on ground; ''2)'' pursuing prey over long distances, forcing it low or high and exhausting it; ''3)'' hovering and making short stoops to force prey out of cover; ''4)'' flying straight up to strike at birds overhead. Strikes prey or drives it to the ground, rather than grasping it in the air. Dead prey typically have broken breast bone.

Male performs spectacular aerial displays with dives and 180° rolls. Uses four methods to pursue prey: ''1)'' flying low and surprising prey on ground; ''2)'' pursuing prey over long distances, forcing it low or high and exhausting it; ''3)'' hovering and making short stoops to force prey out of cover; ''4)'' flying straight up to strike at birds overhead. Strikes prey or drives it to the ground, rather than grasping it in the air. Dead prey typically have broken breast bone.