Can't you enlarge the space before you get the chickens?
If not, you should wait at least 5-7 weeks and then get rid of the roos. I'm sure an extra hen or two won't be a problem.
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Garage or coop is both fine. Just make sure the coop is safe from predators.
Extra Tip: You should keep the roosters separate or give them away. 3 roosters to one hen is a terrible ratio, and the hen will likely lose all of her feathers or suffer extensive amounts of stress.
Right.
You have 3 roosters :(.
The 1st, 2nd, and 4th are definitely roosters 110%.
Whoever sexed them probably lacked experience, or maybe they made a shipping mistake.
You might be able to get a refund from TSC. Since they only had a 25% correct percentage, you should give them a call.
:thumbsup