Fancy, my Wyandotte is not happy about the addition of the cage of teenage chicks to the chicken run. She is spending a large portion of her days making alarm sounds similar to the sounds she makes when the neighbor's cat is prowling nearby. She normally lays tan eggs but yesterday's egg was white. Could the stress from the chicks have caused her to lay a white egg? The egg she laid this morning was normal. What else could have caused a white egg? Is there anything I should be watching out for?