Three Crows.
Adapted from the song "Three Craws"
Three Crows sat upon the wall, sat upon the wall, sat upon the wall
Three Crows sat upon the wall on a cold and frosty morning.
Two Crows sat upon the wall, sat upon the wall, sat upon the wall
Two Crows sat upon the wall on a cold and frosty morning.
One Crow sat upon the wall, sat upon the wall, sat upon the wall
Onsat upon the wall on a cold and frosty morning.