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Side-by-Side Comparison

Attribute	Red-naped Ibis	Andean Ibis
Scientific Name	Pseudibis papillosa	Theristicus branickii
Order	Pelecaniformes	Pelecaniformes
Family	Threskiornithidae	Threskiornithidae
Conservation Status	Least Concern	Near Threatened
Length	—	—
Wingspan	76.1 cm (30.0 in)	79.1 cm (31.1 in)
Weight	823.0 g (29.03 oz)	1492.0 g (52.63 oz)
Diet	--	--
Clutch Size	2-4	2
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🌾 Grassland

Red-naped Ibis only

None

Andean Ibis only

None

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Conservation Status

Least Concern

Red-naped Ibis

Near Threatened

Andean Ibis

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About These Birds

Red-naped Ibis

68 cm. Dark iridescent brown-black; bare red crown patch; white shoulder patch. Resident across South Asia from Pakistan to Myanmar in dry open woodland and cultivation near rivers. Near Threatened; declining due to habitat loss. Feeds on insects, frogs, and crabs in shallow water.

Andean Ibis

75 cm. White head and neck with chestnut tones; black upperparts; bare reddish facial skin. Restricted to Andean grasslands (puna) of Peru, Bolivia, and northwestern Argentina at 3,000–5,000 m elevation. Vulnerable; feeds on invertebrates and small vertebrates in high-altitude bogs and grasslands.

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