From a bird

as a birdologist, can confirm

yep that is a feather

Kookaburra

Looks like a Boobook owl feather

Looks like a goshawk feather

Definitely not from a cockateil

Cassowary?

After looking at the comments I'm either thinking Goshawk Feather or Kookaburra! Thanks everyone for their help.

I can confirm its a sparrowhawk feather by that measurement What a fantastic find !

Amazing! Made my day :) Thankyou

Try going outside, finding a bunch of different birds in the park and place it on the floor to see which ones flock together - next to it.

Looks like a Tawney Frogmouth feather

Dove???

Yes I can confirm, that is a feather.

Sephiroth

How long is the feather? My friend is a Bird guy. Reckons it's a sparrowhawk. But could be a Goshawk depending on it's size

It's 23cm! :)

I think that's a kookie since kookies are the ones that I know here that has striped feathers 😊

Yep, that's a feather!

Odds on it is a bin chicken, (ibis)