Queenie.

Slightly Dishevelled but miles in front of any other bird is Queenie.  Yesterday I saw the very amusing sight of Spud the local 'hot cat' being chased out of the garden by Queenie. He is no pushover and a good hunter but he looked terrified of the ever nearing snapping beak.

 When you call the chicks she is the one who is there first by using a combination of running like the wind and beating her wings fast. She can fly/climb over most obstacles. In a flat out race who would win queenie
 or Roadrunner?