Calliope Hummingbirds weigh about one-tenth of an ounce and are the lightest birds found in the United States. They are also quite fearless and have been known to chase off much larger birds, including hawks!
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Calliope Hummingbirds weigh about one-tenth of an ounce and are the lightest birds found in the United States. They are also quite fearless and have been known to chase off much larger birds, including hawks!