On our CodyCross answers based website we have the solution for Chicken eggs do this for 21 days before hatching. CodyCross game includes different missions and events which update daily so you can earn tokens that are mostly needed to help with answers for challenging clues. Now let's focus on the answer you need for Chicken eggs do this for 21 days before hatching by scrolling down which is part of CodyCross Flags Group Puzzle 20.