Goose egg addling

Goose egg addling is a wildlife management method of population control for Canada geese and other bird species. The process of addling involves temporarily removing fertilized eggs from the nest, testing for embryo development, killing the embryo, and placing the egg back in the nest. Returning the egg to the nest misleads the goose into believing the egg is still developing. Otherwise, the goose would begin laying again.

In order to work effectively, addling must be conducted in a manner that does not arouse the suspicion of the goose, and must not change the odor, appearance or texture of the egg. Effective addling techniques are disseminated by Humane World for Animals and Internet Center for Wildlife Damage Management. The most popular addling method is egg oiling, which entails coating the egg in vegetable oil, thereby depriving the embryo of oxygen and killing it.

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