I've just found this in my inbox, from the Smithsonian. It's fascinating, and very rare!! Thought I'd share it with you all, so....
'This ‘Extremely Rare’ Bird Is Half Female, Half Male'
i remember seeing this bilaterally gynandromorphic cardinal in the news around a year ago.
@Dreamnghrt Interesting. I knew chickens used Z and W chromosomes. I did not know that applied to all birds.
@Dreamnghrt cue right-wing bigots shouting "there are only two sexes".