The usual advice with hens is to remove the infertile eggs, break the bird of being broody and give her a rest from all that sitting to let her hormones return to normal and let her put the weight back on which will have been lost whilst not feeding normally and being inactive for so long. Then provide more eggs if required when she goes broody again a few weeks later. I don't know if you feel the same would apply to quail, but if you did give her a break and then she went broody again once back in lay, you could add eggs at that point. The light and warmth would be better also, as the Spring advances.
Thank you for the advice, I think I would agree with you since this is what I would normally do with my bigger girls (the bantams), I think it's fair to say that Martha would probably benefit from the same treatment.
I waited a few more days just in case, and the eggs were definitely not going to hatch. I don't know why it didn't work, perhaps she was having too many breaks some of the days? The fact that they are so opaque that it's impossible to candle did not help as I could have stopped her a little earlier. But hey, like you said, at least I know she's willing to sit on them for as long as it takes.
It took her less than a day to be back to normal,... They are currently sat together (outside of the little huts) all cooped up together as if we have only one quail with two heads It's lovely to watch them actually. Charley was definitely happy to see her out of the nest, and he celebrated with his courting dance! I don't think Martha was all that impressed though! ahahah
So I shall now wait until she starts laying and get a few additional hatching eggs when she decides to sit again. I will be getting a small incubator next week as well, so at least I will have a back up.
I have been thinking of checking the eggs I "pinched" for fertility (i.e. just in case they were fertile but Martha's inexperience might have been the cause for the failure), but apart from cracking them,... I am not sure how else I could check them,... I might just leave it alone lol by the way, you were correct Marigold, 8 eggs!
I will try and post more photos / videos in a few days time on a different thread to show the 2-headed quail
I will let her sit on there for as long as it takes this time. I read somewhere that it is possible for eggs to take much longer to hatch than the usual time depending on the conditions like if it's too cold, too hot, too dry / humid... It's like they're only going to hatch when the conditions are just right.. will keep you posted!
Here's a link to a short video that shows just how peaceful parenthood is in the quail household lol
I attached a photo but it had to be a screenshot of the original because it was too large. So not sure how good this will be...
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