I removed the roosts in my Hen House and put in a ledge that is 30” high; my silkies were hop/flapping up to the 5’ high level freaking me out!
One night when I was working out west I watch my wee black silkie hen Marty (on camera) launch herself into the abyss - she was roosting about 36” up on her platform, but I guess she had to lay an egg

in her ground floor nest box.
When I got back home I ripped out the whole interior and put a single level shelf up. I have 4 silkies and a few really elderly girls. So no big heights anymore. Also the single level ledge has reduced the bedtime drama and everyone is happier.
All my nest boxes are under the ledge, so my broody silkies who raised babies this summer had a ground floor apartment
And, my night time voyeurism on the barn cam is less stressful
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Chickens - who knew they could be so stressful!