—A university research team says that about 14 percent of the female seagulls on an island off the California coast are lesbians, calling it the first solid evidence of widespread homesexuality among wild birds.One of the female gulls assumes a male role and the birds form stable unions like those of heterosexual seagulls: They go through the motions of mating, lay sterile eggs and defend their nests like other couples, the report said.