There are several reasons why eggs may not hatch: Hens sometimes lay eggs when there are no males to fertilise them; A pair of young finches may be unsuccessful in their mating attempts, but the female may still lay her (unfertilised) eggs Any information I would greatly appreciate! Thank you, Well, I can't! Colony breeding is no way to go. The polar opposite to no nest building can also be a problem for some species which overbuild their nests. Well, I can't! In the case of your birds there may be something wrong with the eggs they tossed, or they were unfertilized, or they felt that they as parents, would be unable to care for the number of eggs in the nest. The adults will take turns sitting on the eggs. One is that the eggs were not fertilized, which means that they won’t hatch into chicks. But really I'd like more information from you. Zebra finches and society finches in particular are prone to stuffing too much material in their nests (causing eggs or chicks to roll out of the entrance), or for building nests on top of eggs. There are two general reasons why your love birds may be throwing away their eggs. The most stressful way to breed the budgies themselves. Finch Eggs Not Hatching. The fact that the egg was thrown out of the nest,was because the egg was not fertile.How do they know without a sonogram? By nature, finches are flighty, nervous creatures. What a Great Creator! If your finches are sick it's always best to stop the breeding process and care for the adult birds. I have made some calls to pet stores and I was told to throw the eggs out. Finches will toss eggs out if its another bird breeding in with them and the other bird clears the nest to use it for herself. Keep an eye on your birds and their egg-laying, but try to avoid physically bothering them. What type of finches do you have? When they leave the nest they may pull … They may toss only a few eggs or chicks to unburden themselves of a large family. Discouraging Finches from Breeding & Laying Eggs For those finches which attempt to have more than 2-3 clutches in a given year, steps must be taken to discourage their breeding, as egg laying (and chick rearing) are very taxing on the parents' resources, and can especially lead to health problems for the hen. Kyra is right. They aren't keen on human company at the best of times, but during breeding and egg-laying season, finches especially don't appreciate human interference. Finches Finch is the common name for one of the largest families of birds, Fringillidae, which includes such birds as grosbeaks, crossbills, redpolls, siskins and Hawaiian honeycreepers. Do you have multiple pairs of finches in the same cage? They are only about a … Finches will toss eggs out if its another bird breeding in with them and the other bird clears the nest to use it for herself. Since you mentioned that it was the same egg being tossed out repeatedly, it is either unfertilized or there is something wrong with it. Those that dont fight to the death over mates and nestboxes will smash and throw out eggs from a nestbox they choose, regardless of who has it already, and that measn destroying anything in that nestbox including chicks.