Green Ibis vs Straw-necked Ibis

Mesembrinibis cayennensis compared with Threskiornis spinicollis

Side-by-Side Comparison

Attribute Green Ibis Straw-necked Ibis
Scientific Name Mesembrinibis cayennensis Threskiornis spinicollis
Order Pelecaniformes Pelecaniformes
Family Threskiornithidae Threskiornithidae
Conservation Status Least Concern Least Concern
Length — —
Wingspan 59.2 cm (23.3 in) 72.9 cm (28.7 in)
Weight 758.75 g (26.76 oz) 1340.0 g (47.27 oz)
Diet -- --
Clutch Size 2-4 2-5
Population Trend — —

Habitat Comparison

Shared Habitats

Green Ibis only

None

Straw-necked Ibis only

Conservation Status

Least Concern

Green Ibis

Least Concern

Straw-necked Ibis

About These Birds

Green Ibis

46–56 cm. Entirely dark glossy green with bronze sheen; red bill and legs; bare facial skin. Resident in tropical lowland forests and forest edges of South America from Panama to Bolivia and southern Brazil. Feeds on invertebrates and amphibians along forest streams. Secretive; usually solitary.

Straw-necked Ibis

59–76 cm. White with black neck bristles; bare dark head; yellowish bill. Endemic to Australia in grasslands, pastures, and inland wetlands. Nomadic; follows rainfall across the continent. Feeds on insects and invertebrates in dry grassland. Often seen in mixed flocks with Australian Ibis.

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