Hello. My Chickens have just turned a year old. They were laying really good. We would get about 18 eggs a day and then it dropped down to about 12 when it started to get warm. There was a snake getting in and eating the eggs but i caught him. Yesterday we didnt have any eggs. Today we only got 5 from them. It has been hot here. In the 90's. Would that have anything to do with it? Are they old now and i need to replace the flock? Really Confused right now. Any help would be appreciated. Thank you!