Ok, we purchased a golden comet that was "6 months old" she began laying the day after we brought her home. Nice brown eggs except for one diagonal strip of darker pigment. This has consistently been what she has layed for weeks. Yesterday morning she layed an egg with little pigment in the shell except for the darker strip. This morning she had laid an egg without a shell and it looks like she didnt know she was going to lay one, from the position, it looks like she was on the perch and it dropped and busted. Rubbery and normal looking contents although the other chickens were eating it. Common? Need more calcium? Older than what they said she was?