Broody Hen coming off her eggs

[NoCluckingAround]

It’s day 19 and my broody hen was the first one out of the coop this morning. She was out for about 20 mins and sat back on the eggs. I suspected her to be on lockdown. Is there any reason to think that the eggs are not developing properly?

 

[The Happster]

They come out for breaks. Some sit solidly through lockdown, others don't. I take the hen off myself for breaks up until there is an actual external pip.
With the incubator, it's not a living thing, so it can go through lockdown. It's better for the hen to have a break.
I wouldn't worry about that. It's good she went back on.
It sounds like she's doing a good job.