Yeah the belief of all roosters being mean is partly a myth.
It is genetic for sure but there can be an environmental role playing into it. It seems there is a general idea roosters are mean or nice, period- no in between when the reality there is like a curve or continuum to it. On one end, there are roosters that are going to be mean, no matter how they are raised. On the other end, there are roosters that are never going to attack, no matter how they are raised.
It is the roosters somewhere in the middle that gets people confused on how to raise them. A common advise is not to raise cockerels very hand tame as that will make them mean because they have no fear of humans. This is partly true but not universal- a rooster in middle of the spectrum may become inclined to attack if raised very tame, yet this very same rooster might never attack had it been raised not tame or raised by a mother hen in a varied, mixed flock. This ignores the reality of both ends of spectrum though.
This is also the 'cause' behind the zillion sworn tried-n'-true methods to handle attacking/mean roosters. The low/mid-specturm roosters can be deterred by any one of the various methods, it really does not matter which method, as long as the reaction is immediate so it has a clear idea of 'cause n effect'.
The high/medium ones can be deterred.. but often it is only temporary. These are the ones people tell you their method works but watch out for him next spring.... or they eventually work up the courage to charge again a few months later. These are also the roosters that have others advising you that you handled him all wrong, that is exactly why he is attacking you again...... it WAS going to attack again no matter what!
And then there are the truly genetically mean ones that will not stop, no matter what you do with them. other than killing them. Those are somewhat uncommon so a lot of people who only have experience with the above roosters become frustrated while trying to advise or unfortunately regard the person trying to handle this kind of rooster as an 'idiot city slicker' all the while without realizing this rooster is *different*.
The chickens are a hobby, so I do not want to tolerate ANY rooster aggression towards me. To be honest, most roosters are killed on the same day they charge at me. It is to get the problem dealt with ASAP and to avoid any second thoughts if the rooster is not culled fast. I do get 'soft' sometimes and start thinking about how that rooster has other positive traits..... wait, NO! lol Then I will remember that one rooster who was nasty but I bred him anyways and his sons were mean also, so I ended up culling the whole line.
I raise the birds very hands- off due to allergies. So, come selection day for culling they are basically tested for true personality by being grabbed one by one... any that bite are marked as culls. In lines that went through several generations there really are zero people aggression, including zero biting when handled.. I let my little nephews chase, catch and carry those roosters with no worries because I knew they would never attack or even bite(and they really never did). And their favorites were the big NN roosters, it was nice to see kids completely unafraid around the chickens.
I do the same thing with broody hens- the ones that put up a fight or do the screeching and exploding off the nests aren;t bred from, with huge preference given to hens that sedately accept being bothered, even with pipping eggs- this was primarily so I could handle peafowl eggs and peachicks without rhe eggs becoming broken or the chicks hurt in the process.
There's a lot of wisdom in this post. I've only been raising chickens for a little over six months, but I've already experienced much of what you've described here.
It seems to me that chickens have individual personalities...just like dogs....just like humans. You can raise all of them the same way and yet some will be incredibly sweet and others will be nasty. The trick for me has been learning when to respect those differences, and when to just throw in the towel and cull. That BR rooster...I tried many techniques with him to no avail. When I went out to collect eggs four days ago and turned to find his spurs coming at my face I'd finally had enough. That wasn't charging but an all out assault for no apparent reason. He had to die. By comparison, I can do whatever I want to my black NN, Heisenberg, and he's never shown an ounce of aggression, but I would never dream of handling my NN "Goldie" that way. He doesn't bite or charge, but he's also not that affectionate. I'm okay with that. He respects me, never shows aggression towards me and takes good care of the flock.
I'm actually in the process of incubating some of my BR rooster's offspring. I'm curious to see what their personalities turn out like...if any of them will be keepers or if they'll adopt his temperament. I originally wasn't going to hatch any eggs fertilized by him but my own curiosity got the better of me (as well as my Psych degree). I want some first-hand experience with the nature vs nurture via and chicken world. All the books I've read, research I've done...it's all pedantic. Nothing can beat "living the experiment".
