World firsts
Scarlet-chest parrot breeds with princess parrot
Until now most hybrid parrots have resulted from crossings between birds roughly the same size.
If they weren't the same size, they were usually from the same family.
The result of a crossing between a male scarlet-chested parrot and a female blue princess parrot has put paid to both those accepted norms.
It happened accidentally in southern New South Wales, an Australian state.
Galah breeds with cockatiel
This hybrid parrot, known as a Galatiel, is the first ever cross between a galah and a cockatiel.
It was bred accidentally by Nikki Wann, who lives at Brewarrina in outback Australia.
She had five female cockatiels, six male cockatiels and a 12-year-old male galah in an aviary together.
When she walked past the cage one day she noticed the unusual baby on a perch, took it inside and made it a pet.
The bird is slightly larger than a cockatiel.