BuckBot

Buckbots are robotic chickens that first appeared in Donkey Kong Country Returns. They only appeared in the Factory area of Donkey Kong Island. Buckbots basically move around from one direction to the next, attempting to run into Donkey Kong and Diddy Kong. Fortunately, they can be destroyed by any attack method.

Buckbots also have a relative, known as the Buckbomb. Buckbombs behaved the same way as Buckbots, but when they get attacked, they'll start to self-destruct, similar to Bob-ombs. Fortunately, the Kongs can pick up a self-destructing Buckbomb to take out other enemies, such as the durable red Pyrobots. Like the Buckbots, Buckbombs also only appear in the Factory area.

Buckbots and Buckbombs were most likely created by Colonel Pluck, considering that the Buckbots do appear during the boss fight.