Scrapwings

They’re scrawny brushland pegs, mostly flightless. Very similar to equines like the Mongolian Wild Ass. Impossible to domesticate, too small to ride/put to work, and wary of or even aggressive toward humans, scrapwings are more or less left to their own devices on the islands they inhabit. This is probably just as well, since they live in the harsh environments normal pegs wouldn’t be able to, and humans generally don't want to. They’re a main staple for predators like bush cats.

Scrapwings have similar biology to broadwings and shortwings, and thus can interbreed with them....but there are no clear advantages to doing so. Like broadwings and shortwings, they cannot interbreed with longwings.

Variations
Savanna Scrapwings have more flair than their northwesterly plains cousins, but are just as hardy. They live in the grasslands that skirt the Sentomia Desert, and travel in small ever-moving herds. They feature a somewhat strange bulbous beak and an equally strange combo of stripes along their crest and dappled spots on their hindquarters.

They rarely stand taller than 13 hands and are seen as a cute curiosity by those unfamiliar with the animals in the desert regions.