No, they would turn into a normal bird. The extra mass is shunted into z-space where afterwards it can be called back to return the shifter to their previous form. Just don't stay a bird for more than two hours.
this post was submitted on 26 Apr 2026
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The real issue is remembering you're not a bird once you have a bird brain
That's easy enough. But for the love of god, don't morph into colony insects like ants or bees!
NOT THE BEEEES
Very Inkspell/Inkdeath.
Animorphs was literally my first thought as well
Oh, Tobias.
ctrl-f “z-space”
Aww, yeah.
That is a weird way of saying "Humans are bigger than birds," even then though, I think on average the ostrich will win.
Edit: I missed the flying part, but still.
And you missed the part about conserving mass. A bird that can fly, with the mass of a human, would be much bigger than a human (cause birds have very thin, hollow bones).
You seem to be describing density (d = m/v). Preserving mass doesn't really mean anything in this context without a discussion of volume.
why would you assume density would be conserved? all I said was mass so the density would absolutely be variable.
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Marahute!
Preserving a mass while maintaining the ability to fly would require you to significantly increase in size, which comes with all sorts of drawbacks.
Humans can't fly precisely because we're too dense. Birds and other flying creatures have plenty of adaptations meant to reduce mass (or, rather, density) by all means possible.
If we're so dense how did we invent planes!?
Putting something small and dense into something big and not dense helps
if a fan was stuck in my ass I'd be a windmill.
CAW bitchhhh
You just cast ritual?
When I was a kid I had a book called The Science of the X-Men (which that site lists for $11 but eBay lists for anywhere from $100-1500) that attempted to use real world physics to explain how the powers of the X-Men might work.
Mostly the explanations came down to "I dunno, maybe black holes?" For example, it speculated that Jean Grey might have a microscopic black hole in her brain and had subconsciously learned to use it to open the other end in other brains and somehow vibrate the brain matter in a way to communicate telepathically.
Anyway, I don't recall whether it covered any shapeshifters, but if so, it probably handled it the same way Animorphs did (as others have mentioned in this thread), but with black holes instead of z-space.
You ever seen an ostrich?
Bro they are bigger than humans.
But for a bird with a human's mass to be able to fly, it would have to be huge. Much larger than an ostrich.
Birds have hollow bones so their mass in comparison to their size is very little.
True true
Emu as well
Has either of you seen a flying ostrich or emu?
What if you use a trébuchet ?
Please dont introduce emus to siege weapons, they're already a significant military threat without them
Yeah I definitely missed that part. Also pretty sure they can glide. ? Does that count. ?
Have you seen their wings? They're not going to be gliding either.
And if my mom had wheels she’d be a bicycle.
The village bicycle?
By quite a lot too. The kori bustard is the heaviest known flying animal at around 18kg or 40lbs.
Are you also preserving the ratios of materials that the body is made of? We'd have very heavy bones for a bird (or a lot of bones at bird density) and probably not enough muscle to lift 2m long wings. Also all the keratin in our hair and nails wouldn't make many feathers. We'd be a mostly plucked bird
not as large as big bird
imagine a human-sized flying bird, that would be terrifying
those are still estimated to have a mass topping out around 40 pounds, so a bird with the mass of a human would probably be more than twice the size of that one, at least.
I mean, it would just be an ostrich, with the ability to fly.
and the wingspan the size of a car to lift that weight
Albatross already have the wingspan of a car, an 80kg human would need a lot more.
I mean.....I'm not an ostrich expert, but isn't that already roughly their wingspan? Fuckers can grow to like 9 feet tall, I suspect their wings fully extended would be pretty wide.
you would need to turn into something like a Pterosaur given the hollow bones and everything. Those could be anywhere half the mass of a person to like twice the mass or something.
Just because mass is conserved doesn't mean size/shape is conserved. If you're always human-sized, you're a pretty shitty shapeshifter. No offense.
thats... the whole point of the post. a bird with a humans mass would be huge. maybe you should have left your shitty assumptions in your ass. no offence.
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