A zoologist discovered a rare Green Honeycreeper bird in Colombia displaying both male and female characteristics.
This bilateral gynandromorph is extremely rare in birds, and the photographs of the bird are considered the best of any wild specimen.
This discovery is only the second recorded instance of gynandromorphism in this species in over a century, and it is important for understanding sex determination and sexual behavior in birds. (Trending: Here Are The Most Disturbing Ways Hunter Biden Spent His Millions)
“Many birdwatchers could go their whole lives and not see a bilateral gynandromorph in any species of bird. The phenomenon is extremely rare in birds, I know of no examples from New Zealand ever. It is very striking, I was very privileged to see it,” Professor Spencer said.
“This particular example of bilateral gynandromorphy – male one side and female the other – shows that, as in several other species, either side of the bird can be male or female. The phenomenon arises from an error during female cell division to produce an egg, followed by double-fertilization by two sperm,” he added.
“Be always on the lookout for oddities – who will find the first New Zealand example of a bilateral gynandromorph in a bird?”
The phenomenon arises from an error during female cell division to produce an egg, followed by double-fertilization by two sperm.
A University of Otago zoologist and an amateur ornithologist found a rare case of gynandromorphism in a a wild Green Honeycreeper.
What does that mean? The bird has a distinct half green, or female, and half blue, male, plumage.
This is basically an animal with both male and… pic.twitter.com/EtPcnHI0tS
— Massimo (@Rainmaker1973) December 12, 2023
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