Sure it can be left on the counter no problem. Hens usually lay an egg or so a day, when they get a bunch together (a Clutch) they then go to roost on them. They pull out their belly feathers to get that good skin contact and they run a fever. The heat is what makes the fertilized egg start incubating. 21 days later, right on the money, you get a bunch of new chicks.
The fertilized egg will not start growing on the counter without the hen sitting on it unless your house is kept over a hundred degrees.
Thank you for that good bit of insight! As the house is never near 100 degrees at any time of the year, I’ll give the fertilized eggs a chance on the counter!
Glad to help out a fellow hobby farmer.
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