The Rainbow Grove has its own morning schedule. First comes Carol β you'll hear her before you see her, that big "Teakettle! Teakettle!" bouncing off the fence. Then Roy arrives, finds the highest branch, and sits there looking magnificent. He knows exactly what he's doing.
The real magic happens at dusk, when Robbie comes through on his rounds. He always stops at the little water dish, picks something up, and washes it. Then he looks directly at the window. Robbie knows they're watching. He always has.