The Bee Hummingbird, which is found only in Cuba ( it’s “endemic” ) , is an absolute miniature, even among hummingbirds. It measures a mere two and a quarter inches long. They weigh less than two grams — less than a dime.
” Sometimes mistaken for a bumblebee, females measure about 61 mm from beak to tail and weigh 2.6 g while the slightly smaller male has an average length of 55 mm and weighs 1.95 g. This is believed to be the lowest weight limit for any warm-blooded animal.“
Read more about this tiny gem on Birdspot