Which is the smallest bird in the world?

The Bee Hummingbird (Mellisuga helenae) is the smallest bird in the world by both length and weight, measuring only 5.5 cm (2 ...
Reuters

Fact Check: Photo shows artwork of a Crimson Topaz hummingbird

Social media users are sharing a photograph of a paper art depiction of a small Topaz hummingbird with the false claim that it shows the world’s smallest hummingbird. The smallest hummingbird in the ...