Which bird weighs less than a penny?

A. Goldcrest
B. Weebill
C. Hummingbird
D. None of these

Explanation:

The smallest and lightest known living bird ever recorded is the Cuban Bee Hummingbird. This tiny, brightly colored bird weighs less than a Canadian or US penny and because of that they are often referred to as “Penny Hummingbirds” or “Penny Birds.”