Buff-bellied Hummingbird Identification

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The Four Keys to ID

  • Size & Shape

    Relative to other U.S. hummingbirds, this is a fairly large hummingbird with moderately long bill, tail, and wings.

    Relative Size

    Larger than a Ruby-throated Hummingbird, smaller than a House Wren.

    Relative Sizesparrow or smallersparrow-sized or smaller
    • Both Sexes
      • Length: 3.9-4.3 in (10-11 cm)
      • Weight: 0.1-0.1 oz (2-4 g)

Regional Differences

Ornithologists recognize three subspecies, one of which (chalconota) is found in the United States. The other two (cerviniventris and yucatanensis) are resident farther south in Mexico. These subspecies differ in the color tones of their body plumage, with the northern two subspecies paler below, the southern yucatanensis more richly rufous rather than buff in the belly.

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