Great frigatebirds, Fregata minor, choose mates that are genetically similar

Mate relatedness is studied in a Hawaiian population of great frigatebirds with the expectation, based on frigatebird ecology, that mate pairs were unlikely to be more genetically similar than a random draw of adults from the breeding population. Paired analysis was used to compare the DNA fingerprint similarity of a female and her mate versus the same female and a random male that was breeding elsewhere on the same island.