RED TAILED HAWK EGGS FOR SALE CAN BE FUN FOR ANYONE

because the chick develops you will notice an increase in sizing of a pocket of air at the highest with the egg; this is called the air-sac and is also separated in the chick by a membrane. When the chick is due to hatch it breaks in to the air-sac, this is called internally pipped and gives the chick about two days of oxygen prior to piping the sh