10x10 is 100 sq ft. If you gave them 4 sq ft per chicken, it'd hold 25. To put 40 in there would give them 2.5 sq ft per chicken.
The thing is, there is no magic number - 'this is ok, that is not'. It depends on a lot of things, luck figuring largely into them. But the less space your chickens have, the likelier you'll get picking/cannibalism problems (which are not always fixable this side of the stewpot).
You pays your money, you takes your choice.
Good luck,
Pat
The thing is, there is no magic number - 'this is ok, that is not'. It depends on a lot of things, luck figuring largely into them. But the less space your chickens have, the likelier you'll get picking/cannibalism problems (which are not always fixable this side of the stewpot).
You pays your money, you takes your choice.
Good luck,
Pat