Birds

Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Wings, which evolved from forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming.

Birds are considered today the only surviving class of Dinosaurs, evolving first in the Aptian era, they have since made a reputation as being one of the most diverse and varies classes of modern animals. Overall the story of the aves is ballad of a booming evolutionary success story that fell from the height of its fame during the K-pg extinction event, however they still persist around today as perhaps one of the most successful species on our planet.

In Eye of the Beastiary
Birds actually suffered greatly in the aftermath of the K-pg mass extinction, while they still managed to survive and diversify into the Cenozoic, their ecological niches where overun by the rise of the Dragons, which outcompeted them in most aspects, persueding their steady decline into the later periods of the Cenozoic. Come present Victorian era, birds are scarcely found in the world of E.O.T.B, to put into perspective, birds are around the same scale of diversity as bats are to real world birds. Birds in E.O.T.B

Accipitriformes

 * Harpies