What would you do ?

It depends on what rooster was running with them... Hens can hold sperm from several different roosters for up to 6 weeks.. It is anyones guess what that is unless they led you to believe they were only running with another of the same kind I would leave it alone as it puts you in the running for the Darwin Award.

Good luck... I would ask them politely what kind of roos were running with the hens. Good luck!!!

 

If you bought and received black Australorp hens ~ you got what you paid for.

If you want to hatch out pure chicks then you should have first checked what rooster they were with or waited a month or more and then mated them with an Australorp rooster. If you don't want the mixed chicks then sell or rehome them on CL. It is not the fault of the seller that you hatched the hens fertile eggs and got mixed chicks unless you spoke with them about it and they told you that the hens were mated only with a black Australop roo.

 

I agree...unless some clear agreement was made with the seller for pure breeding quality birds bred with the same, you're stuck. Instead of immediately thinking ill of the seller, also consider that some folks just don't know any better. On my first attempt at purchasing chicks, I set out for Dominiques. Rather than going with a hatchery, I found a local backyard breeder for them. Turns out, my chicks are BRs...the guy just didn't know the difference and the chicks looked right to me at a few days old. I was plenty irritated, but the guy was just some farmer who thought that's what he had based on color. Who knew more than one type of bird was barred!