From the Lindsay Post (emphasis added):
Also included in the list is the Bee Hummingbird, which measures two inches long and weighs half an ounce making it the world’s smallest bird.
Field Sparrows and Violet-green Swallows weigh around a half ounce, which is 14.17 grams. At about 1.8 grams each, it would take almost eight Bee Hummingbirds to weigh half an ounce.
But seriously, I’m troubled that this article was written, and presumably researched, by the Chief Librarian at the City of Kawartha Lakes Public Library. This was the most conspicuous error, but several other statements betray the author’s inadequate research into birds and birding. On the plus side, the article recommends A Supremely Bad Idea: Three Mad Birders and Their Quest to See It All and The Young Birder’s Guide to Birds of Eastern North America.