How Do I Sex My Chickens? How Old Are Rooster When They Start To Crow?

There are a couple of ways to sex chickens, either by characteristics or vent sexing.
Sexing chickens is difficult as their sex organs are on the inside of their bodies and they do not generally show cosmetic sexual differences until they are 2 months old.
The technique of vent sexing was noted as accurate in the 1930s when two Japanese professors perfected the technique. A chicken sexer performs venting, which is where they squeeze the chicken to open up the anus and look inside to see the sex organs. In a male, there is a small lump in the anal passage and there is no lump in the female. Vent sexing can be performed from when the chicks are a few days old. The method is 95% accurate.
Feather sexing can also be done from an early age, but only if you know what breed the parents of the chicks are. This also only works if the parents are different breeds. In some breeds of chickens primary plumage is longer on a female than a male and this will carry through to the chicks with the females having the longer plumage. This is a good method of differentiating between males and females on a small farm where there is not the budget for a chicken sexer. Knowing the breed of both parents is vital. If the parents are of the same breed this method is not accurate.
Looking for characteristics in a chick after 2 months is the best way for a small farmer. The male will get much larger and its face will become more angular. The female will remain smaller, with a more rounded face.
Roosters start to crow between 1 month (unlikely) and 9 months. This should start off as a quiet crow and develop over time.

Roosters start to crow depending on how fast they mature. RI Reds start to crow at 5-6 months old. Others start later. I even have a rooster who was still learning to crow at 8-9 months old.

I have (amongst many others) a little 7 week old bantam that started to crow today.. Bless him!

Now that I have a Rhode Island Red rooster in the coop with my 8 hens, will all of the eggs be fertilized?  Also how old does he have to be to be interested in the hens---he's 13 weeks old.

The roosters first goes at crowing are usually a bit feeble, and will give you time to deal with them in whatever way you have chosen.
I would pre-empt neighbour trouble by informing them about the babies and telling them what you plan to do with the males.

"I beg to differ with the 'highly skilled job' title. Sexing chicks at birth is as easy as turning them over and looking at their bottom...."

That easy, you reckon, huh? And you're not even sure what hole to look for. FYI, they look exactly the same except for the tiny pimple inside the cloaca, which you need a lot of experience to pick up. Even good chicken sexers miss around 5 out of 100.

I don't know, maybe one is a bigger hen than the other, maybe you got a rooster, you'll just have 2 see if the big 1 grows a big tail

Some roosters will start to crow around 6 months.
Just listen in the morning and I am pretty sure that you wil hear him

Only one dominant one will crow but around 6 months one of your roosters should crow look for spurs on there feet and combs on there heads

My Barred Rock started crowing at 11 weeks, so he went to a chicken farm and I replaced him with 2 pullets.

They start crowing at about one year, you can get them fixed by a vet not to crow.other wise take it to the animal shelter, If you have to but then you might as well kill it yourself if you have the guts. So the poor thing won't suffer. But you know, you could be lucky this time, if they all look the same,it sounds like you got all hens. At about 10 weeks old the difference will start to show in the feathers. If you do have a rooster just see how long you can get away with it. Tell your neighbors that you can't kill it but they can if they want. That will shut them up.

Generally roosters have started to crow around 3 months old for standard size chickens I have found with my breeding. One way to sex a bird is to feather sex them. A rooster will have pointed feathers especially on the neck and tail, while hens will have a more rounded feather. Also, roosters tend to have darker or lighter coloring than the hens. Roosters also have larger combs and wattles (the red things on the top of their head and under their beak) they also tend to be darker in color. I wish you the best of luck with your birds!

Hens are really chubby. Or if you don't mind, and if the chicken doesn't, then you can check under the tail, roosters also have large tails that swoop up like a mountain, and drop like a cat falling from a 10-story high building.

The best way is not by size - as chickens do come in different sizes. The best way to find out is by the comb on the head and the waddle under the chin. If you have a picture it would also help.