The reason for the peculiar name could be found in....

“ The reason for the peculiar name could be found in the whimsical sense of humor of the early colonists who arrived on Deanna several decades in the past and found very little at all there to laugh at. Obsidian Crows might seem funny at first, unless you just happened to ride over one with your Jeepo five miles out of town and didn’t have a spare tire. Although there was a reasonable expectation of hitting one of these diminutive brutes on the roads, this did not happen nearly as often as you might think. ”

Christina Engela

From : Dead Man's Hammer