(Questions below pictures.) Our best layer, Scarlett, a RIR, has been laying one egg a day since she started laying, taking only two days off. That changed two days ago, when she laid a fart egg. Fart egg 2 days ago http://db.tt/EizDjd6c Inside fart egg http://db.tt/77TpqCJA I chaulked it up to just one of those things. But today, she tried to lay an egg and didn't. I checked on the chickens this AM and she was in the nesting box, so I know she was trying. When I checked on them this afternoon though, no egg from her. I thought maybe they kicked it out of the nesting box (as they sometimes do) so checked the whole floor of the coop but there was no egg. She seems ok so far: eating, drinking and pecking around. I can definitely feel an egg in her when i checked her and I also saw some yellowish stuff in and around her vent. It didn't look like egg yolk to me but I don't know what else it could be. Vent just now http://db.tt/4wWCCTOX My questions are this: 1. Should I be concerned about her?? 2. If so, how should I proceed? 3. Any ideas on what the yellowish stuff could be? This is the first issue with laying I've had so I'm on new ground and would really appreciate people's help.