Genesis 30:39

30:39 When the sheep mated in front of the branches, they gave birth to young that were streaked or speckled or spotted.

Genesis 30:41

30:41 When the stronger females were in heat, Jacob would set up the branches in the troughs in front of the flock, so they would mate near the branches.

Genesis 33:2

33:2 He put the servants and their children in front, with Leah and her children behind them, and Rachel and Joseph behind them.