Penguin here.

Let’s calculate where the bee hummingbird falls on our cute meter.

1. Colourful plumage: check
2. Incredibly tiny (weighs 1.8 grams and measures 5cm according to Wikipedia’s Bee Hummingbird article) : check
3. Makes cute buzzing sound (their wings beat 60-80 times per second according to How To Enjoy Hummingbirds): check

Resulting rating: Absolutely Adorable!

Bee Hummingbird: World's Smallest Bird

Found here: Wild Facts