Well, depends on the bird (when they start to crow). I've had them wait til they were around 16 weeks, & I currently have one that has found his crower at only 6 weeks
He is by far the earliest crower I've ever had, but I also knew he was a he at only a few days old cause he matured so quickly. Sorry you need to re-home him, it stinks when you've become attached.
Okay, I may be looking for false hope. I found this blog and it shows pictures of both a Delaware hen and a roo. The hen does look kind of like mine, don't you think?
Thank you all for all the compliments on him...he's so beautiful to me too. I'm so going to miss him. Anyone here in Vegas want to give him a good home?