Having Marans myself I have a fairly good idea of how big Brownie is. I also have orps who lay large eggs. 10 eggs will be no problem for her to cover at all. She will also have no problem especially with warmer temps coming keeping 10 chicks warm during the crucial time.So, I have some choices to make. I have 10 for sure viable eggs left when I candled them today. Sadly, I lost all but three of the Silver laced. The eggs were extra large and I suspect that their size played a role in why those eggs have not faired as well in shipping as compared to the smaller jubilee eggs.
You guys know I have brooder/grow out tent and had planned to use it again to raise these babies. Then Brownie decided to go broody.
My coop isnt set up at this time with broody and baby chicks in mind. I have brownie in a water bowl with nesting material and she is content to sit there. This makes it sooooo much easier to get to her and switch out non fertile eggs every day or two. I did this also so I could just pick her and the nest and relocate her if needed.
Idea one: bring her into the tent in my garage and stick all the viable eggs I have left at lock down under her. This seems like a lot of eggs to sit on atm but I could well lose a few more till lockdown day which is the 30th. Advantage no way any of the other pullets could mess with her or the babies. Downside it could disrupt the pecking order and could result in a status lose for Brownie once she returns.
Idea two leave her in the coop and put the 36”high metal pen around her creating a temporary area where the other pullets couldn't steal food or harm the chicks. I would put a piece of plyboard over it to give it a lid. If I go with this option, I would give her three eggs to hatch out.
Advantage the chicks grow up with the flock seeing them. Downside the pen could possibly get breached by the chicks or it could fall over as there is no easy way I can think of to secure it to anything.
Thoughts anyone?
With your two options I would move Brownie and her nest bowl into the tent tomorrow. This will give you time to see if the change in location is going to set her off. Some hens will absolutely not take moving nest sites, some do. If she throws a fit, starts pacing and refusing to sit in the tent even giving her eggs in there at lockdown is a no go. If you do this in the morning you will know by tomorrow afternoon if she will accept it or not.
Now if it were me, I would be inclined to give all 10 eggs to her for her to hatch out in either location. If she stays in the tent, get her and those chicks back out to the flock at a little over a week old. Personally I only isolate or try to isolate for the first day or two. My girls will whip everyone over their chicks. Brownie will not allow the other hens to harass them.
If Brownie will not stay in the tent I would set up the cage in the coop and still let her have all 10 eggs. Again only keeping them separate for a few days. You want her and the chicks intermingling. The newness of the chicks will wear off for the others in a day or so and they will be established flock members. Allowing Brownie to rear them you are doing the chicks a favor. They will be integrated from day 1 and will not have to be integrated around 6 to 8 weeks old and be picked on with no protection or a buffer like a mother is.
Also as much as I love hand rearing chicks, I cannot deny that the mothers do a 100x better job then I can do. Broody raised chicks in my opinion grow faster, learn more and just in general know how to chicken better then hand reared ones.
There is one potential problem that may arise with Brownie having chicks and I'm surprised it is not already rearing it's head. Personally from my flock observations I think broodiness is contagious. I feel if you have individuals or breeds that are prone to go broody and you allow one to sit, it is not long before others get the same idea. It comes in waves in my flock. It is very rare that I only have 1 broody at a time, normally they are in pairs. Sometimes the other girls will go broody a week or two after the first group start sitting, and sometimes they will wait until the chicks hatch to be triggered.