Altaïr doesn't know the birds of the Featherhive. He doesn't know their temperament, their capabilities or their capacity for danger — and there's every possibility that creatures can look benevolent and prove to be very different. Anything is possible.

But he does know Diana, at least well enough to recognize that it's not some hidden danger that she had noticed and he had not that prompted her to kill the bird. There's emotion in her face and her body language, something that goes deeper than acting to protect the two of them.

He doesn't ask about it right away, instead moves towards the spot where the bird vanished at an easy pace, examining it briefly before retrieving her blade from the treee with some effort.

"That was an impressive throw."