Hi there....Ive been surfing for info about why my 2 hens ( 1 year old and already molted in spring), are laying eggs with no shells. I saw one shell today....all folded and crumpled near an egg splatter. I don't think they are eating shells...as I have seen a perfect yolk siting in nest. Things I may have done WRONG- I left a bowl for outdoor drinking....no cover on run. I haven't done a mite check yet. its been hot here but inside coop stays cool. @ 2 hens share a coop and both have stopped laying, so I am thinking they may have picked up a virus? from the water bowls beng out in open....I do give fresh water every day outside ad have never seen other birds poop in it.... Thanks in advance for any help you can give. I do try to find out myself on this site and others...but I find the experiences others gain and pass on are more informative then most sites.