At about 10:30 this morning (October 24, 2015), in Oklahoma, a crowd of people congregated to watch the State University homecoming parade. Suddenly, a car struck a police motorcycle, then drove straight into the crowd. As a result of this, 3 people were killed and 34 others injured.
For birds that are laying large numbers of eggs, an easy and high calcium supplement is dried egg shell ground to a powder and added to their normal feed. Layer pellets are supplemented with calcium as well. Soft or thin shelled eggs may indicate calcium problems in your birds.
You'll see a lot who swear their roosters eat layer feed and do just fine. Others swear the extra calcium impacts their kidneys. Personally, I don't feed layer feed. I have different ages and genders in my flock. I feed an all-in-one type feed, and offer oyster shell. My layers eat the oyster shell when they need it, the chicks taste it and find it's not to their liking, and the roosters know the hens like it so they consider it a treat.