flocculent

Flocculated, resembling bits of wool; woolly.

As soon as night begins to spread its darkening shadows over our brief twilight, this active creature [the morepork] sets out on its hunting excursions, roaming over field and gully with soft, noiseless flight, one of the advantages it owes to its flocculent plumage; [...]

Covered in a woolly substance; downy.

Flaky.