Como Felice se tornou um pássaro?

Em Saga do Exílio Plioceno , no começo de O Rei Não Nascido Felice foi descrito como um corvo:

Perched on a lone tree in the midst of the blooming savanna, the raven watched a pair of sabertooth cats cooperate in stalking their prey. ... While the prey still struggled, the raven flew down, on fire with the old lust. The cats withdrew before her coercive blast and crouched, snarling and hissing, as the predatory bird attacked one of the gazelle's great black eyes. The beak struck like an ebon dagger.

também

She plunged into the water and in a moment the raven was rocketing skyward, gripping a golden circlet in powerful talons.

Parece que ela estava realmente se transformando:

The enormous bird glided down to stand near the head of the corpse. The bereaved Tanu stared mutely at the bird, his green eyes dim with tears and his mouth a taut square of anguish. Only when the raven's beak poised above the dead man's throat did the other cry out: "Fian!" She did know them, these rose-gold twins! A paroxysm of anger dissolved the bird body, and a slender human woman wearing blue glass armor stood there.

Como ela está se transformando em um pássaro? É uma aplicação de poderes criativos, ou ilusão?