Blue-tufted Starthroat vs Amethyst-throated Mountain-gem

Heliomaster furcifer compared with Lampornis amethystinus

Side-by-Side Comparison

Attribute Blue-tufted Starthroat Amethyst-throated Mountain-gem
Scientific Name Heliomaster furcifer Lampornis amethystinus
Order Caprimulgiformes Caprimulgiformes
Family Trochilidae Trochilidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 10.8 cm (4.3 in) 13.1 cm (5.2 in)
Weight 5.7 g (0.20 oz) 5.6000000000000005 g (0.20 oz)
Diet Nectarivore of open Argentine and Bolivian habitats; visits diverse shrub flowers. Catches small insects in … Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods.
Clutch Size 2 2
Population Trend — —

Habitat Comparison

Shared Habitats

Blue-tufted Starthroat only

Amethyst-throated Mountain-gem only

None

Song & Call Comparison

Blue-tufted Starthroat

Song

Buzzy, insect-like trill with rapid modulation; high-frequency buzz sustained briefly then repeated after pause.

Amethyst-throated Mountain-gem

Song

Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.

Geographic Range & Migration

Blue-tufted Starthroat

Found from Bolivia and Brazil south to Argentina and Uruguay in open woodland and scrub. Sea level to 1,500 m.

Amethyst-throated Mountain-gem

Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.

Conservation Status

Least Concern

Blue-tufted Starthroat

Least Concern

Amethyst-throated Mountain-gem

About These Birds

Blue-tufted Starthroat

A medium-sized hummingbird (12-13 cm) found in open habitats from Venezuela and the Guianas through Brazil to Argentina. Green plumage with blue throat tufts (males) and a long, forked tail. Nectarivore of savanna, gardens, and forest edges. Widespread in southern South America.

Amethyst-throated Mountain-gem

A medium-sized hummingbird (11-12 cm) found in mountain forests from Mexico to Honduras at 1,000-3,000 m. Males have an amethyst-purple throat. Nectarivore of pine-oak and cloud forest. Commonly visits feeders in Mexican highland gardens.

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