This how we sang it in first grade at Stevens School in Swansey,
massachusetts (1940)

MY PIGEON HOUSE

My pigeon house I open wide and set all the pigeons free,
(Arms reaching wide for the sky, fingers fluttering upward)
They fly to the hills on every side and light in the tallest tree,
(Arms extended high with fingers fluttering downward)
And when they return from their merry flight,
(Arms lowering, fingers fluttering)
They shut the door and say goodnight,
(Hands together at palms, closing inward)
Then:
(With hands on sides of face and head rocking to and fro)
Kuroo   kuroo   kuroo   kuroo,
Kuroo   kuroo   kuroo   kuroo,
Kuroo   kuroo   kuroo   kuroo,
Kuroo   kuroo   kuroo.