When Bunnelby evolve into Diggersby, they frequently take issue with the low-level ground vibrations coming from a particular human spot, for they are far too loud and regular to be earthquakes. Confident that their newfound power will see their complaints answered, they walk onto construction sites intent on mayhem, and most often walk off inside a construction worker's poke ball.
These workers have no shortage of difficulty training their new Diggersby, for although combat comes naturally to all pokemon, training them to excavate in a way usable by humans is far harder work, especially when said pokemon arrived on the site as prospective destroyers. Yet Diggersby learn to sympathize with the construction workers, for they themselves have ripped up much of the ground to create their burrows, and they admire the vast structures which human architecture can create. They do detest the loud noises so common on these sites, for their large, sensitive ears are easily disturbed, so it is usually necessary to not run their excavation work concurrently with loud equipment.
However, when trained properly and returned to their poke balls when they the noise would otherwise make them rampage, Diggersby are as much a part of construction in Kalos as fighting pokemon like Conkeldurr and Machoke are in the rest of the world. Diggersby's ears can remove anything from dirt to boulders far quicker than an excavator, yet these pokemon are far less likely to accidentally damage archaeological sites or destroy precious metals than any more cumbersome human equivalent. Unfortunately, because domestic Diggersby typically lay their eggs in a burrow in the wilderness and leave them to hatch and grow on their own, they have failed to spread word of human construction's nature to their children.