Hummingbird or Buff-Bellied Hummingbird?

Here's how to tell the difference

Hummingbird image 1

Hummingbird

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Buff-Bellied Hummingbird image 1

Buff-Bellied Hummingbird

Hummingbird

Trochilidae

General appearance

Hummingbirds are small, vibrant birds with iridescent feathers. They are most noticeable for their quick, darting flying style and ability to hover in mid-air. Colors range widely, including greens, blues, purples, reds, and whites, often with a metallic sheen. They possess a long, thin beak perfect for sipping nectar from flowers.

Male vs female

Males are typically brighter and more colorful than females, often with a ‘gorget’ or patch of bright, iridescent throat feathers that females lack. Female hummingbirds have softer, muted coloration for camouflage when nesting. Males are also slightly smaller on average.

Juvenile

Juvenile hummingbirds resemble their mothers in colouring to stay camouflaged. They lack the iridescent throat patch of adult males. As they mature, juvenile males begin to develop more vibrant feathers, particularly on their throats, and by their first winter, most will have at least a few bright feathers indicative of their gender.

Size

2.0 - 10.2 in/0.1 - 0.8 oz

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How to tell the Hummingbird from the Buff-Bellied Hummingbird

Visual differences

The Buff-Bellied Hummingbird is medium-sized, about 4-5g and 4-4.3 inches long, with iridescent green upperparts, a reddish metallic tail, and a distinctive buff-colored belly and undertail. It has a long, slightly curved beak with a flesh-colored base. Larger than many hummingbirds, which range from 0.06-0.85 oz and 2-10 inches, it is identified by less vibrant plumage in females and a white eye spot in both sexes. Other hummingbirds vary widely in color, but they lack the buff-belly and specific tail and beak details.

Key differences and behavior

Hummingbirds (Trochilidae) and Buff-Bellied Hummingbirds (Amazilia yucatanensis) exhibit distinct behavioral patterns that aid in identification. Generally, hummingbirds inhabit tropical and subtropical areas, showcasing diverse migratory behaviors, while Buff-Bellied Hummingbirds are more localized to semi-open areas in Texas, particularly in suburban locations. Hummingbirds are known for their dynamic aerial mating displays, whereas Buff-Bellied specifics are less documented but similarly include aerial rituals. While all hummingbirds feed on nectar and insects, Buff-Bellied Hummingbirds show territorial aggression. Both construct cup-shaped nests, but Buff-Bellied Hummingbirds notably use lichen for camouflage. Hummingbirds overall exhibit a broader size range, whereas Buff-Bellied individuals weigh 0.14-0.18 oz and measure 4-4.3 inches. In the field, the Buff-Bellied's territorial behavior and suburban nesting can distinguish it from other hummingbirds.

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