That snake story is incredible!
I experienced a first yesterday. I came home from work and went to do chores. I have a broody sitting on seven (now six) in the storeroom. She is isolated with food and water and nests in a milk crate. When I went in to check on her, there was a broken blue shell in front of the crate, about a foot away. She was still sitting happy as can be. The shell had an embryo in it about the size of a man's thumbnail. She's due on the 19th. Then, I saw on the other side of the barrier that keeps her in and anything else out (a scrap piece of plywood), she had vacated a lot of runny feces. This is the second time I have seen this - the first time was within her barrier and I thought maybe she had od'd on scratch. Do you think she kicked the egg out of her nest for some reason? And if she did, how did she manage to get it up and over the edge of the milk crate? My new coop (they just moved in at the beginning of March) is fortified like Fort Knox, so I can't believe it was a predator. And if it had been, they would have not stopped at just one. We all know how impossible that is! lol.
Lockdown is tonight for the 77 eggs still in my two incubators. The eggs that I was testing for fertility were all fertile! I have only culled seven out of 84 originally.