From the very start Spider has always been bigger then Mary Jane. Spider walks more upright then Mary Jane. Spiders blue is prettier then Mary Janes. I can't believe from day two they had their names and we guessed right on the sex. Mary's feet are two toned their a black and orange and Spiders feet are all black. That helped alot telling the two apart when they were not side by side to see the size difference. Spiders waddles are larger and Mary's waddles are small and looked almost attached to her face. Spiders hang down and waddle. Their personalities are totally different. Spider loves people and Mary only tolerates them to be around Spider. I guess Spider was having a bad day that other day I held him because he didn't seem to enjoy it one bit. Yesterday he was back to his old self again. Yes the hairlike feathers on his neck are longer on his neck then Marys. Can you tell your females from the males now?
Thank you for listing the differences here. It helps everyone learn what to look for. You did a good job guessing and your grandson did a good job with the names!