How to deal with an agressive hen

[Nik-T]

Our hens at 3 months old have currently stoped laying due to the winter months and the cold weather. But I thought they have started to molt their feathers as their are feathers all over the cage. Just suddenly yesterday I noticed one of our quails had blood above their beak and started to wonder what was happening. It appears one of the hens have become aggressive and she spooked the other 6 quail hens who tend to jump crazily. I'm worried one of them might break their leg due to the space above. Already we had one quail brake their leg to high jumping who has now recovered but i dont want any more injuries. Just wanted to attach a photo of the quail that had been injured, i wonder if i should separate the aggressive hen to keep the rest calm as I do no want any others to be injured or worst scenario for her to kill one of them

 

[AGeese]

Sounds like you need to separate it.

 

[Nabiki]

I would separate your bully for a day or two and then put her back in to see if she has learned her lesson. If she has, great, if not, then you will want to think about culling or rehoming her.

That injury looks like it could be a puncture from wire or it could be a rat bite. I would double check to make sure you don't have rats or mice coming in. Those can also spook your hens.

 

[Nik-T]

I would separate your bully for a day or two and then put her back in to see if she has learned her lesson. If she has, great, if not, then you will want to think about culling or rehoming her.

That injury looks like it could be a puncture from wire or it could be a rat bite. I would double check to make sure you don't have rats or mice coming in. Those can also spook your hens.

Definitely there isn't any rodents entering the cage at all as it is super tall and there is just no way for them to enter it at all. I did notice with the aggressive hen been removed they where all calm today. Moment I introduced her back all the quail including the one male I have all jumped in fear to my hands. So I do think the aggressive hen could be the cause of their stress.
Speaking of the injury I did notice this quail was jumping alot she might of hit her head above the net and hurt it that way
I remember we had to cull like 5 roos because of the situation they went through, it was horrible and I wouldn't of expected females to be same.
I will probably have to remove the aggressive hen as she might cause problems later on sadly if they don't get along.

Just attached more photos of our cage and picture of the bully who sat on her own(the brown quail). We are thinking on completing removing her as separating seams to make her aggression alot worse and i don't want any deaths

 

[Nabiki]

I see a couple things that could help. For one, your birds are crowded and could use a lot more space. Second, they don't have any hiding places. Adding a few will help. A dirt bath will also help.

 

[AGeese]

I don't know about Quail, but space for chickens is everything. As for rodents I'm not sure how super tall is tall, but they can both jump and climb, and if they can reach it, nothing's to stop them from getting through that welded wire. Rats could kill them, but all it would take is one small weasel and then you'd have no birds left. I would wrap the whole thing in 1/2 in. hardware cloth regardless.