I have 3 R.I. reds that have just started laying about (for about two weeks, now). The first week or so I got 3 perfect eggs a day. For the past few days Ive been getting 1 perfect egg. If there are 2 others they are usually very light brown with a thin shell, or soft to the touch. Should I be concerned? They have a bowl of oyster shells in the run, and are given dandelion along with a high quality feed. My concern is that they are allowed to free-range. could something in their free-range diet be causing this? I also bring them home a lot of veggies (tomatoes, lettuce, cucumbers, carrots) from my job. could this have anything to do with the rubber eggs? They are new layers, so im trying to be patient. but this is somewhat alarming. Any advise?