Then I heard the cheery chirrup of a fat robin hopping across the grass toward me. Of course I answered back. Surprised, the little bird stopped. He looked looked left, then right. I could hear his thoughts. "Who said that!?"
I whistled again. He hopped nearer for a closer look, glimpsed the human and halted with a flip of his tail feathers. "Wait a minute! That's not a bird!" To his obvious astonishment, I whistled once more. He chirped a soft reply. "Who IS that?"
And I answered. He seemed to realize then, it was truly I who was talking to him. He looked me up and down. "Good grief! It IS a HUMAN!"