’If t’rooks build low, it’s bound to blow, if t’rooks build ’igh, t’weather’s dry.’ 
(”If the Rooks build low it will blow and if the Rooks build high, it will be dry”)

 “a Crow in a crowd is a Rook, a Rook on its own is a Crow” 

”Whoever follows the crow’s cry will end in ruins” (old Persian saying)