Our world is composed of so many different amazing species. One of them is the gynandromorphy bird identified by a group of researchers at Powdermill Nature Reserve, in Rector, Pennsylvania. The bird is a rose-breasted grosbeak with unique coloring.
The bird is sexually dimorphic. It has male characteristics on the right and female on the left with a separation approximately in the middle and is called as bilateral gynandromorphy by the researchers.
What is bilateral gynandromorphy?
Gyandromorphy simply means the animals or species with both the male and female characteristics in them but bilateral gynandromorphy is defined by animals and species where both the male and female characteristics are present but are separated in the middle of the body internally or externally.
The right-wing of the bird was a little bigger than the left according to the measurements taken. The bird has pink “wing pits,” breast spot, and black wing feather in the right and female yellow wing pits and browner wing on the left side.
Lindsay also said that Powdermill has been keeping a record for a long time ( six decades nearly). In such a long time only five out of 800,000 (estimated), captured birds are having the characteristics of gynandromorphs.
Can this bird breed?
Generally left ovary is operational in birds and the left side of this bird is the female side so theoretically, the bird can give birth to the young ones if it mates well with the male successfully. Reproduction could also depend on the capability of how well it sings like a male that would likely attract females. “The entire banding team was very excited to see such a rarity up close, and are riding the high of this once-in-a-lifetime experience,” said Annie Lindsay.
“One of them described it as ‘seeing a unicorn’ and another described the adrenaline rush of seeing something so remarkable. They all are incredibly grateful to be part of such a noteworthy and interesting banding record. Bilateral gynandromorphism, while very uncommon, is normal and provides an excellent example of a fascinating genetic process that few people ever encounter.”