What is That Sound?

Action Rhyme
What is that sound that I hear in the hall? (cup hand to ear)
A cuckoo clock ticking away on the wall (swing arm back & forth)
Hiding inside is a wee, little bird, (form hands into circles & peek through)
And a moment ago, it was HE that I heard! (cup hands to ear)
“CUCKOO! CUCKOO! CUCKOO!”