Good grief, one shouldn't look at things without one's glasses, lol.
I am so sorry about that 'OOPS'

It's just that it's such an unnatural position for chicks, that I didn't even remotely oxpect it.
I have a couple of pictures of chicks on their backs, when I was doing baby races and baby exercises to strengthen the legs of chicks that were somewhat splay legged. They had to race across the place mat on the table into the cave of my hand, then flip over on their own from being placed on their backs, to being right side up . Sounds crazy, but it worked.
Anyway, here are 2 chicks on their bacs, and one in the process of flipping over.