I have given roos away free, sold some for $10 (standards) Laying hens standard or bantams automatically $10 each, Serama pairs under 6 months $50 a pr over 6 months depending on type and size $75 and up. Really does vary depending on the breed and age like everyone said. I saw a man put an ad on craigslist for a barred cochin bantam, he said they were rare (alot of hatcheries have them) and was trying to sell it (rooster) for $25 far from a show bird too. I had to laugh at that one. I bet he is still trying to rehome that roo. My mixes go for $5 a piece