They usually come in groups of 3 to 5, and attack in flocks, usually in a formation such as a zigzag, "V", or a vertical line. Some Bronto Burts will chase after Kirby trying to run into him, some just take off and fly away very fast when Kirby gets near, out of fear. Some stand on ground and then attack or fly straight ahead when Kirby comes too close. Just like Waddle Dee is the most common enemy on the ground, Bronto Burt is the most common enemy in the air. Also like Waddle Dee, most of Bronto Burt's behavior remains the same throughout the series. One could guess that they are the "Waddle Dee" of the sky.