As the large rock cooled, all sorts of wildlife began to grow used to he new part of their enviroment. A few birds were a part of this wildlife. One of these birds; A female Robin, happened to land on the tip of the rock. As soon as it did, it jumped down to the ground. She was in pain from the unnatural powers of the meteorite.
The Robin crippled up on the ground as it began to change. Her entire body grew, stopping at 5'5''. She stood up in a straightened stance, now about half the size of the large rock. Her shins cracked foward, causing her to lose her balance. She fell backwards on her now more rounded ass. Her potato-shaped body crunched inwards, vaguely resembling that of a human's.
Her organs shifted along with her torso, becoming that of a female human. Her hips expanded outwards as her waist caved in, giving her an hoirglass figure. Her chest inflated out to large E-cups, making her fall face first into her humanoid knees. Long, flowing black hair emerged from her scalp as her wings lengthened down to her ass, forming talons that almost matched her feet.
The anthropomorphic Robin stood up, trying to gain some sort of balance. She looked over herself in disbelief. "I'm a human!" She said with a few gleeful chirps afterwards.