I have one rooster and now 3 hens just introduced Charlie (new hen) to Little Richard and the girls I have six more chicks coming in March If they all survive, that will be 9 hens Will I need another rooster
1 veteran, 1 red dog 1 rooster and 3 hens 
Finally! Chickens!!! Member of the Derperella Club!
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I am the Magical Avian Emperor Mr. Lord King Sir! BOW TO ME or be captured by the evil empire of apples! (Don't be fooled, I'm a girl)
Finally! Chickens!!! Member of the Derperella Club!
My BYC best friends are polishchickens111, ChickenPeep, and willowbranchfarm!
I am the Magical Avian Emperor Mr. Lord King Sir! BOW TO ME or be captured by the evil empire of apples! (Don't be fooled, I'm a girl)
They say the ratio is 1 rooster for 10 hens, so a 9 to 1 ratio should be fine. Although the new girls I wouldn't introduce them until they are big enough to sustain him.
"The difference between being involved and being committed is the same as the difference between eggs and bacon. The chicken is involved. But the pig is committed" Anonymous
"The difference between being involved and being committed is the same as the difference between eggs and bacon. The chicken is involved. But the pig is committed" Anonymous
Thanks for the explanation Ridgerunner, I've got 30 hens and one young rooster (about 10 months old) and most every egg I crack has a fertility bulls eye on it. If I watch them for five minutes I see him mount at least once or twice, so I can only imagine how much he's mating over a 14 hour day. I've also seen hens come up to him and squat (I guess when they think it's their time?). I'm about to set some eggs in the bator and will update on the fertility rate in a few days. I was worried that I would need to separate him with ten hens after reading all the "suggested" ratios, but now I think I'll give it a shot with random good-looking eggs.
21 IDEAL assorted crested chickens, 13 Meyer's Golden Buffs, 9 barnyard mixed chickens, 6 IDEAL Production Reds, 5 IDEAL Easter Eggers, 4 IDEAL fawn and white runners, 3 Silver Laced Sebrights, 2 RIR, 2 Bared OEG, 2 RIR/White Leghorn, 2 IDEAL pekins, 3 IDEAL cayuga ducks, 1 IDEAL khaki campbell, 1 IDEAL magpie duck, 1 IDEAL buff duck, 1 Golden Comet, 1 Buff Orp, 1 Jersey Giant
21 IDEAL assorted crested chickens, 13 Meyer's Golden Buffs, 9 barnyard mixed chickens, 6 IDEAL Production Reds, 5 IDEAL Easter Eggers, 4 IDEAL fawn and white runners, 3 Silver Laced Sebrights, 2 RIR, 2 Bared OEG, 2 RIR/White Leghorn, 2 IDEAL pekins, 3 IDEAL cayuga ducks, 1 IDEAL khaki campbell, 1 IDEAL magpie duck, 1 IDEAL buff duck, 1 Golden Comet, 1 Buff Orp, 1 Jersey Giant

Thanks for the explanation Ridgerunner, I've got 30 hens and one young rooster (about 10 months old) and most every egg I crack has a fertility bulls eye on it. If I watch them for five minutes I see him mount at least once or twice, so I can only imagine how much he's mating over a 14 hour day. I've also seen hens come up to him and squat (I guess when they think it's their time?). I'm about to set some eggs in the bator and will update on the fertility rate in a few days. I was worried that I would need to separate him with ten hens after reading all the "suggested" ratios, but now I think I'll give it a shot with random good-looking eggs.
And he's the happiest rooster around!
I ran one roo with around 17-20 hens and had good fertility.
Rachel BB
Well, the kittens aren't so cute anymore and the easter egger cockerels are in the freezer. Plus, I think offering them as "prizes" scared folks off! So, I'm still posting quotes, if you know it let me know. I'm very enamored of this new one, it may hang around for a while!
"If I'd known the world was ending I'd have brought better books"
Rachel BB
Well, the kittens aren't so cute anymore and the easter egger cockerels are in the freezer. Plus, I think offering them as "prizes" scared folks off! So, I'm still posting quotes, if you know it let me know. I'm very enamored of this new one, it may hang around for a while!
"If I'd known the world was ending I'd have brought better books"