‘One-in-a-million’ half-male, half-female bird spotted in Pennsylvania - GulfToday

‘One-in-a-million’ half-male, half-female bird spotted in Pennsylvania

red bird 1

The rare half-male, half-female northern cardinal.

Gulf Today Report

When Pennsylvania-based bird-watcher Jamie Hill set out to watch this peculiar bird that had been frequenting a friend’s neighbourhood, little did he know that he would have a once-in–a million encounter.

Hill, 69, ended up having an “experience of a lifetime” as he snapped photos of a rare northern cardinal that was half male and half female.

Mr Hill, who has been bird-watching for nearly 50 years, spotted the unusual sight of the half red, half white bird, in a tree in Warren County, outside of the city of Erie, last week.

“It was one of the experiences of a lifetime,” he told USA Today. 


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That’s because male northern cardinals have bright red feathers, and females have tan feathers. This bird was both.

The extremely rare phenomenon is known as “a bilateral gynandromorphy.”

They differ from hermaphrodites who share both or partial male and female reproductive organs, in that their whole body is divided down the middle biologically and it could, therefore, theoretically mate with either a male or female, and produce young.

It all started when Mr Hill was alerted by a family friend of a strange looking bird coming to one of her feeders near Grand Valley.

However, the birdwatcher had no idea it would turn out to a gynandromorphy.

After she texted him a photo taken through a window Mr Hill rushed to view the bird and spent an hour waiting before it arrived, and then took around 50 photographs.

Writing about his discovery on February 20 in the Erie Bird Observatory blog Mr Hill said: “It was immediately apparent ... it was indeed a cardinal with extremely rare bilateral gynandromorphism. This bird would have a functioning ovary on its left side and a functioning single testis on its right.”

He added: “I have been birding for 48-years and ... I had a once-in-a-lifetime, one-in-a-million bird encounter.”

One of the first scientific recordings of the condition was in 1752, when The Royal Society of England was presented with a unique lobster that was split down the middle in colour, as reported by the BBC.

Since then other animals seen to have the rare condition include chickens, butterflies, snakes, bees, crabs and silk worms as well as birds.

Because of the northern cardinal’s distinct, bright red plumage, it is believed to be noticed more frequently.

A similar northern cardinal was spotted a few years ago near Erie and published in National Geographic in January 2019.

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