About 5 percent of Australia's common wild birds, including Cukabarra and Loricates, can change the floor, because their genetic floor does not correspond to the reproductive organs. This has been reported in The Guardian.

– In a case, Kukabarra, a genetic person, has a males, has been extended from the egg (paragraph for eggs), showing “recent egg production”. Research shows that two genetic pigeon birds have both ovarian and ovarian reproduction structure, the message said.
This can be caused by the effects of chemicals that have disrupted hormonal balance in the body. Scientists are also concerned that this phenomenon can lead to a reduction in the population of these birds.
Earlier in Istanbul, witnesses recorded a brush with abnormal skills on the video: She learned Meow. On the published frames, you can see a few beaches near the machine gun with cat food. One of the birds standing near the machine and meow, paying attention to the drum tray with food.