I have 2 female zebra finches, and between them both they lay eggs from time to time. I usually have just tossed the eggs because I know that they are unfertilized, but this last time they laid eggs, there are 8 eggs between the 2 of them. They are both taking care of the eggs together, sitting on top of each other most of the time, but other times they start to get quite aggressive with each other and fighting.
Should I toss the eggs every time I see them in the cage or should I just leave them there? For how long?
Are you sure they are both females? Just curious as even good pet stores sometimes have issues sexing birds.
That said, if they lay eggs, can you just separate them if they start getting aggressive toward each other and let nature take its course?
If I had to do this and knew the eggs were not fertile I would toss them right away because of the smell if they sit around way too long. The longer you leave the eggs the more rotten they become and if they do happen to break the smell is horrid. If you see them laying eggs just throw them away.
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My finches have been sitting on their eggs for over 2 weeks. I'm not sure of the sex. I have a "fawn" female/male and a "chocolate" female/male. I've had them a little over a month and a few weeks ago I realized they were sitting on eggs.
I had cockatiels for years: they would sit on the eggs for almost three weeks (18 days sticks in my head) then, when they didn't hatch. They ate them. Gross, huh? I'm guessing that finches will be much the same. You can just leave the eggs under them.
If they don't eat them, they will eventually leave them and you can take them out.
I use to raise finches. Just leave them alone. If they have babies and you disturb them, they will drown them in the water bowl. Don't move the cage or anything. Any disturbance will cause them to kill the babies.