The Chronivac simply displayed the progress bar of the transformation as Jeff simply watched it fill up. He had no clue what kind of animal he would, all he knew he would become the pet of some kind. Whatever it was, Jeff could grab something to eat while he changed.
Heading down to the kitchen, he had a look in the fridge to find anything to eat. Nothing caught his attention, not even his favourite chocolate bar which was in one of the shelves on the door. He had no luck with the fridge and then went scavenging in the cupboards.
Not soon after looking through the cupboards, did his eyes lay on his dads fish bait, a can of worms. Usually repulsed by them, Jeff found a desire to eat the whole can right there, and so he did.
He threw the can onto the floor, letting all the worms all over the floor. Getting into a squatting position, he used his mouth to pick up each worm of the floor, keeping his arms and hands to the side of his body. As he feasted upon the worms, his mouth started to protrude from his face and harden into a calcium-boney structure that resembled a beak. Inside Jeff's 'beak', his teeth were absorbed back into his gums and he could only swallow the worms whole now, unable to chew.
He devoured the worms quite quickly and felt his body recieve the call of nature. Letting a poo go, he failed to realise he was now currently naked, a cause due to the Chronivac. Another change to his body was that the poo he let out looked similar to bird poo.
"That was delicious. Never knew worms were quite that tasty." Jeff squawked
Behind Jeff, his sister Lucy had wandered into the kitchen too, however she was up on the ceiling. Like Jeff, she had also changed, but not in the same way Jeff did. Scales covered parts of her face and her hands and feet. Behind her, a small tail was protruding from behind with scales also covering it and her brown hair appeared to being changing colours slightly every so often. It was actually somewhat pretty.
"Hey bro, are there any worms left for me?" Lucy called out to Jeff
"Sorry sis, are them all" Jeff Squawked back
"Awww, ok then I'll-" a bee buzzed into the kitchen which caught Lycy's attention. As soon as she saw the bee, she used her newly lengthened tongue to catch the fly into her mouth.
"I'll go catch some bees outside as I'm sure there is a bee hive nearby." Lucy said as she climbed out of the small window, which Jeff was Certain was once too small for her to fit through.
Speaking of size, the kitchen seemed bigger then it used to, or was it that he shrunk. This should have raised alarms in Jeff's 'bird' brain but what was he thinking about again as Jeff's attention span was quickly lost. His main priority now was finding somewhere to rest as he found himself oddly tired.
Climbing onto the kitchen counter, he closed his eyes and slept. As he did, more changes began to occur.
Firstly, his arms and hands began to lose discernable features. His fingers fused together and skin coloured feathers began to sprout all over his hands and arms. Quickly as the transformation began, did it end and Jeff's hands and arms were replaced with wings that were large to his small frame.
His legs and feet also changed, but not in the same way as his arms did. His feet began to morph into skin coloured Talons with the claws having a look that looked like human nails. His legs became more bony while everything above his knees began to fuse with his torso, which made him look like he was continuously crouching if he were to stand up.
His penis and anys slowly moved closer together and as they fused together, they formed a cloaca. Which finished of Jeff's physical changes.
One last change would affect Jeff, which would be his mental changes. He had swapped roles with a parakeet, meaning that he would act and function as one. He would be able to fertilise eggs that other human Parakeets lay, but wouldn't be able to mate with a human that swapped roles with a dog. This also means that he now was technically not Lucy's brother anymore, as she had swapped roles with a Chameleon.
The Chronivac finished up Jeff's changes and placed the now shrunken Jeff in a bird cage in the living room of his house. Now simply a pet human parakeet to some former animal.