So, we went away on holiday for a few days, came back and discovered one of our hens sitting under the coop. I didn't know when they were due to hatch, having no idea when she started sitting. It turns out it was last weekend while we were away admiring my sister's new baby. I had moved her a few days before to an empty and closed coop so that she was safe and close to food and water.
Anyway, on Monday morning I discovered that although 8 of the 12 eggs had hatched well (about two days before by the looks of it, ie the day we went away), a 9th one seemed stuck- half the shell had gone but he seemed unable to crack his way out, and the membrane had dried up around him. So I soaked the egg in warm water until the membrane softened, helped the little chick out, kept him on a hot water bottle all day and put him back under his mother when darkness fell.
Yesterday he was fine- not walking around much but I put that down to being slightly cramped in the egg for such a long time.
This evening I went down to feed them and found there were only 8 chicks visible- RuntyChick had disappeared and there was no sign of him. I searched the bedding and found him under a pile of bedding, hypothermic, damp and covered in bedding bits but still (just) alive.
I did my usual soaking in warm water thing to warm him (he started cheeping again), blow-dried him and popped him on a hot water bottle in the kitchen. I have since given him those instant pick me up drops, some cake crumbs and some water and he's really perked up. He's still not walking very well yet though, although he seems to be getting stronger.
So my question is- does his mother know something I don't? Is he so special needs he's not going to make it? Is it worth bothering keeping on saving him?