Crowmon

Crowmon is a crow that commands a giant flock of crows and who appeared in the episode Waste Management. He can be identified by the scar on his left eye. When the forest he lived in was destroyed, his flock urgently needed food. King Dedede had a surplus of garbage at the time, so this was an opportunity for the crows to feed. Dedede bargained with them; he would get rid of the garbage by feeding it to the voracious flock. Unfortunately, there was not enough garbage to satisfy them, so Crowmon indefinitely declares that they have "been betrayed". The flock is soon convinced to find their meals in Cappy Town. The crows descend upon the town and start raiding it for more food. Soon enough the crows are forced out of the town and back to the castle. From there the crows are kicked out again and retreat to a prairie. Crowmon continues to preach to the crows until he stumbles upon a box filled with food they confiscated from the town. Unfortunately, the drink is really a monster-making serum. Crowmon mutates and becomes violently insane. He starts brainwashing the other birds and convinces them to attack the village. Dyna Blade gets involved and goes to fend off Crowmon and his flock when she sees her chick is missing. It is revealed that Crowmon has it captive; unfortunately, with Crowmon clutching the chick at death's grip. Dyna Blade is stuck in an unfair hostage situation. Laughing and taunting Dyna Blade's helplessness, Crowmon overwhelms her by blasting her with his heat vision. However, Kirby sucks up a feather and becomes Wing Kirby, who quickly exterminates the smaller crows with his Feather Gun attack, and attacks Crowmon, freeing Dyna Chick. Crowmon is dumbfounded and is quickly smacked backwards by Dyna Blade. Crowmon crashes into a large mountain, and unconsciously descends into the forest below as he reverts back to normal. With Crowmon defeated, the rest of the birds are freed from his control.

Physical Appearance
At first, Crowmon is a simple black crow with a scar on his left eye. He is about the same size as the rest of his flock and has a large strand of feathers on the top of his head. But as a monster, Crowmon's size multiplies tenfold. He also gets sunken in red eyes and a large horn on his head. His feathers become more purple than black and he gains large, dark purple markings around his eyes. Crowmon also has his trademark scar as a monster. Strangely, Crowmon also has the ability to shoot dark red heat rays from his eyes as a monster.

Trivia

 * Crowmon has some similarities to Amon, they are both disgruntled animals that lead a group of other animals and both to become Demon Beasts. Strangely enough, both of their names also end with -mon.