Calliope Hummingbirds measure just 3 inches long and weigh around one-tenth of an ounce. (That’s about the weight of a table tennis ball!) They are the smallest birds found in the United States, but they are not the smallest birds — or even the smallest hummingbirds — in the world.
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Calliope Hummingbirds Are the Smallest Birds in the U.S.A.
1 min read
Lauren Cabral