Ruby-throated Hummingbird vs Violet-capped Woodnymph

Archilochus colubris compared with Thalurania glaucopis

Side-by-Side Comparison

Attribute Ruby-throated Hummingbird Violet-capped Woodnymph
Scientific Name Archilochus colubris Thalurania glaucopis
Order Caprimulgiformes Caprimulgiformes
Family Trochilidae Trochilidae
Conservation Status Least Concern Least Concern
Length 8.5 cm (3.3 in)
Wingspan 11.0 cm (4.3 in) 11.0 cm (4.3 in)
Weight 3.1 g (0.11 oz) 4.78 g (0.17 oz)
Diet Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … Nectarivore of South Brazilian forest, visiting bromeliads and Heliconia. Supplements with insects and spiders.
Clutch Size 2 2
Population Trend

Size Comparison

Body Length
Ruby-throated Hummingbird 8.5 cm
Violet-capped Woodnymph
Wingspan
Ruby-throated Hummingbird 11.0 cm
Violet-capped Woodnymph 11.0 cm
Weight
Ruby-throated Hummingbird 3.1 g
Violet-capped Woodnymph 4.78 g

Habitat Comparison

Shared Habitats

Ruby-throated Hummingbird only

None

Violet-capped Woodnymph only

None

Ruby-throated Hummingbird

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

Song & Call Comparison

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.

Violet-capped Woodnymph

Song

Deep, hollow churr with resonant character; prolonged buzzing sound vibrating softly through tropical canopy.

Geographic Range & Migration

Ruby-throated Hummingbird

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

Violet-capped Woodnymph

Found in the Atlantic Forest of southeastern Brazil, eastern Paraguay, and northeastern Argentina. Resident.

Conservation Status

Least Concern

Ruby-throated Hummingbird

Least Concern

Violet-capped Woodnymph

How to Tell Them Apart

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

Violet-capped Woodnymph

About These Birds

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.

Violet-capped Woodnymph

A medium-sized hummingbird (10-11 cm) found in the Atlantic Forest of southeastern Brazil, eastern Paraguay, and northeastern Argentina. Males have a violet-blue crown and green body. Nectarivore of forest and forest edges. Replaced by Fork-tailed Woodnymph in Amazonia.

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