Carrier Falcon Princess is a Manga/Manhwa/Manhua in english language, Military series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

A Kingdom under war.

The 8th Princess of Roymonde, Zelleine, escaped in time amidst the chaos
but she woke up in a bird’s body instead of a princess’s?

‘Gweeckkk’

What is this? What is this animal’s sound?

Even worse, the bird she was “transmigrated” into is the messenger falcon of the bloodless and tearless General ‘Valhayle’.

She starts a journey for her country and to find her real body but she keeps getting involved with the General and a red warning sign flashes in her life.

Human or bird, life is hard.