Meet Radium Gears. She is a scientist earthpony who is a Nuclear Engineer, Mechanical Engineer, and has an affinity for construction. She is the co-founder of Realm Bridges Industries.
 
Additionally, she unfortunately has a faulty heart, and requires a Ventricular Assist Device to significantly help aid her heart pump blood.
 
The birb is a construction of Radium Gears. It features a titanium exoskeleton with a light plating of tungsten over it’s chest and head. It has large, sharp, titanium wings. It has magnetic claws to help latch onto magnetic bars Radium has as a backpack on her back, to allow her to fly.
 
Radium Gears has a prosthetic foreleg, and also has light exoskeleton leggings on her hindlegs to help compensate and carry her mechanical bird’s weight, as well as other things that require heavy lifting.