Gay Penguins: "Not Gay"

"The homosexual behaviour of male king penguins has already been noted in zoos," reports The Daily Telegraph.
"Now in a new study, scientists have found the evidence of male pairs in the wild. The research found that more than a quarter of the colony in Antarctica were in same sex partners, mostly two males.
"In the past, it was claimed that penguins could not discern between the sexes because they looked alike. Male pairs in zoos in the US and Germany have hatched and reared ‘adopted’ chicks.
"However the new study by the Centre for Functional and Evolutionary Ecology in Montpellier, France found that the penguins are only pairing up with other males because they are “lonely”.
"There are not enough females in the colony and the males have high levels of testosterone, which drives them to engage in mating displays - even if it is with other males."
All sounds pretty gay to me...