hens are intelligent

My old White Sussex Sally (nearly 6...) used to escape from their #end of the garden by
leaping off my nephews trampoline, boinging over the fence I'd put up.
It was like a scene from Chicken Run!  The others watched, and followed her!

She's the only one so far who has worked out how to open my huge double glazed patio doors tho. We have to keep it shut when she's out, otherwise she  prizes the door with her beak, wriggles her head in, does another wriggle until her neck is in - then opens her wings. The first time I saw it - I stood there wth my mouth open!
Anyone who says chickens have short memories-  no way - she can open that door every time. (Likes to come in and plonk herself in the dogs bed!)

We love 'em!