We adopted these four chicks from my daughter's classroom. They came to us at just younger than 2 weeks. We are loving them but from their growth (now about 8 weeks) I think 3 of the 4 are roosters. Can you give me your opinion from the pictures? I am basing it on their tail feathers. 3 of them are long and pointy and 1 is more rounded. i don't know their breeds as the eggs came from a mixed breed farm.