Possible Clues:

• Caper with egg plant
• Plant resembling a delphinium
• Have a bit of fun with projection for plant
• Birds get right up over flower
• Birds hear sound of cat, one in flowerbed
• Flower also called delphinium
• Early birds turn up to run plant
• Frolic on branch line serving plant
• In the garden, an incentive to a songster?
• What the blooming bird may have on foot