Pigeon inbreeding calculator
Type in the cock's and the hen's ancestors to see the coefficient of inbreeding (COI) their young would have. Write a bird the same way each time it appears.
How to use it
Use a ring number or name for each bird, and write it the same way each time it appears: that is how a repeated ancestor is recognised. Capitals and spaces don't matter. Leave a box empty if you don't know the bird.
The figure uses Wright's path method. It can only count the ancestors you type in, so with more generations the real figure may be higher. A free account works it out for you from your own pedigrees, over up to ten generations. Read what the numbers mean.
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