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.
Thanks for the clarification. I was told that lay pellets provide enough calcium, but I was having a high rate of thin shelled eggs. I allow my chickens to free range several days a week. Through trial and error I have found that 40lbs of oyster shell in a separate pan lasts for three months.