I know there is natural variety in egg size, color, productivity etc. I have 2 Barred Rocks and 1 Buff Orpington who are about 1 year old. Their production has dropped quite a bit in the past month- even though days are long, feed is good, and they should be at the height of production. I used to get 2-3 eggs per day from the girls. Now I am getting 1-2. I chalked this up to stress- a few new birds added to flock, temps have been very warm (90+), and they are spending less time free in yard than before. Now I am questioning if something else could be going on. The eggs were always an even tan color previously, and were medium sized. Now, if I get eggs, the shells are almost white. I haven't had a brown egg in several weeks. They are not light tan- almost white. The general quality has also been poor- a few with meat spots, discolored whites, and oblong shells. Is this typical, or could something else be going on? Also, is there a specific disease or vitamin deficiency or pathogen that is known to bleach out the shells in this way? Thanks for any input!