I’ve been wanting to do this for a while so I’m just going to go for it. For those offended, get over it.
Abra Cadabra! Shazam! Open Sesame! Yabba Daba Doo! There, I just took all the magic out of that magical hen to rooster ratio. Now reality rules instead of magic.
Actually there never was a magic ratio. Breeders regularly keep one rooster with one or two hens throughout the breeding season without issues. These are usually adults, not immature chickens. People often keep one rooster with 20 to 25 hens and all the hens lay fertile eggs. Sometimes they also have barebacked hens or overmated hens problems. Some people regularly keep multiple roosters in a flock with no problems, sometimes the roosters fight to the death. The number of hens does not affect that, though a total absence of hens probably will.
Some factors come into play. Hens and roosters are totally different from pullets and cockerels. Once they mature, hens and roosters generally form a really peaceful flock. Immature adolescents with their hormones flowing and lack of self-control or experience are totally different. Cockerels normally hit puberty well before the pullets do. They often have no control over their hormones. Those hormones are not just about sex either, a lot of them have to do with flock dominance. Mating is an act of dominance, the one on bottom is accepting the dominance of the one on top, whether by choice or by force. Trying to dominate also leads to fighting, chasing, pecking, and just bullying in general. The pullets are generally immature and have no idea what is going on so they run away or resist. As someone once said, watching chickens go through puberty is often not for the faint of heart.
There is no magic number of hens that will make your situation paradise no matter how many you add.
One factor in how keeping multiple roosters turns out is their individual personality. Some roosters and cockerels will fight to the death. No matter how badly they are getting beat, they don’t run away. Others, even if the other is running away, just won’t quit. Often when they are in these fights or even before they fight, one realizes it is better off running away. There may be some chasing and such, but the winner lets it get away. After a while they reach an accommodation and work together to protect the flock.
I had an experience where one cockerel just hated another. I don’t know why. I had 18 cockerels around 15 weeks old. One specific cockerel took a pure hate toward another one and literally killed it. After that one was killed, the other 17 cockerels got along great together.
A really huge factor in how this turns out, other than personality of the individuals, is room. They need room to run away and get away when they run. A normal occurrence with multiple roosters is that after they determine which one is boss, each rooster claims a certain territory, preferably out of line of sight of each other. The hens split up so each rooster has its own harem. Usually they can even share a coop at night, I’ve had some that could. If your room is tight you are very likely to have big problems. If you have a lot of space, you at least have a chance. But three males and one female just won’t work. You don’t need a lot of females per rooster but enough for them to form separate harems if they have room is really important.
Many people in your situation that just can’t stand to part with a rooster keep bachelor pads, it sounds like your best option. If you create a pen and only put males in it, all females forbidden so they don’t have them to fight over, they are usually pretty peaceful. It’s usually not that different from having an all-female flock. It’s your choice whether you put all three or just two in there and leave one with the pullets.
Silkies as a breed usually are pretty mild mannered, though there are some stories on here where a Silkie has been a murderous brute. Breeds may have tendencies but not every individual in that breed follows that tendency. It’s possible you could put one cockerel with your pullet and things would be OK, but I’d really want more. Part of that is that chickens are social animals. If you only have two together and one dies, the other is really lonely. I don’t know what your goals are or why you are keeping chickens so how many you add is up to you. I think you’d be OK with a couple more though if you want to add 9 or 19, go for it. No matter how many you add puberty may be rough, but eventually you’ll have a nice flock.
Good luck!
