Scissor-tailed Hummingbird vs Ruby-throated Hummingbird

Hylonympha macrocerca compared with Archilochus colubris

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Side-by-Side Comparison

Attribute Scissor-tailed Hummingbird Ruby-throated Hummingbird
Scientific Name Hylonympha macrocerca Archilochus colubris
Order Caprimulgiformes Caprimulgiformes
Family Trochilidae Trochilidae
Conservation Status Endangered Least Concern
Length 8.5 cm (3.3 in)
Wingspan 13.3 cm (5.2 in) 11.0 cm (4.3 in)
Weight 7.25 g (0.26 oz) 3.1 g (0.11 oz)
Diet Nectarivore of Venezuelan cloud forest; visits Ericaceae and diverse forest flowers. Catches small insects near … Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over …
Clutch Size -- 2
Population Trend
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Size Comparison

Body Length
Scissor-tailed Hummingbird
Ruby-throated Hummingbird 8.5 cm
Wingspan
Scissor-tailed Hummingbird 13.3 cm
Ruby-throated Hummingbird 11.0 cm
Weight
Scissor-tailed Hummingbird 7.25 g
Ruby-throated Hummingbird 3.1 g
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Habitat Comparison

Shared Habitats

Scissor-tailed Hummingbird only

None

Ruby-throated Hummingbird only

None

Ruby-throated Hummingbird

Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.

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Song & Call Comparison

Scissor-tailed Hummingbird

Song

Sharp, emphatic chip note repeated rapidly; clean staccato delivery with rising intensity during territorial display.

Ruby-throated Hummingbird

Song

Soft, high-pitched chattering and twittering 'chee-dit'. Also produces a thin 'tik' call in flight. Wing beats create an audible high-pitched humming buzz during hovering.

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Geographic Range & Migration

Scissor-tailed Hummingbird

Endemic to the Paria Peninsula of northeastern Venezuela in cloud forest at 700–1,200 m. Critically endangered.

Ruby-throated Hummingbird

Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.

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Conservation Status

Endangered

Scissor-tailed Hummingbird

Least Concern

Ruby-throated Hummingbird

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How to Tell Them Apart

Scissor-tailed Hummingbird

Plumage

Gorgeted Woodstar (alt): males with iridescent blue gorget; metallic green body; white pectoral tufts; females green above; spotted

Ruby-throated Hummingbird

Plumage

Metallic green upperparts and greyish-white underparts. Males have a brilliant iridescent ruby-red gorget that appears black in poor light. Females lack the gorget.

Bill

Long, straight, thin black bill adapted for probing flowers

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About These Birds

Scissor-tailed Hummingbird

A medium-sized hummingbird (11-12 cm plus elongated tail in males, total 18-20 cm) endemic to the Paria Peninsula of northeastern Venezuela. Males have deeply forked, scissor-like tail streamers. Nectarivore of humid montane forest. Classified as Endangered.

Ruby-throated Hummingbird

The ruby-throated hummingbird is the only breeding hummingbird in eastern North America. These tiny birds beat their wings about 53 times per second and can fly backwards, sideways, and even briefly upside down. They make an extraordinary non-stop 800 km crossing of the Gulf of Mexico during migration.

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