Humchub seems like a calm and peaceful monster, but its life is in constant danger. It has to eat a lot of food very frequently because they tend to have very quick movements that require a lot of energy to do. It can flap its wings until they seem invisible, but it still wouldn't be enough to lift its chubby body. It has the ability to gather energy from the sun through the bulb for a tail
Humchub >>>>>> Troplihum
Hummingbird + Chubby
They aren't as chubby as they seem. It's its fluffy feather that gives it very chubby appearance.