White-shouldered Ibis vs Roseate Spoonbill
Pseudibis davisoni مقارنةً بـ Platalea ajaja
Side-by-Side Comparison
| السمة | White-shouldered Ibis | Roseate Spoonbill |
|---|---|---|
| الاسم العلمي | Pseudibis davisoni | Platalea ajaja |
| الرتبة | Pelecaniformes | Pelecaniformes |
| الفصيلة | Threskiornithidae | Threskiornithidae |
| حالة الحفاظ | Critically Endangered | Least Concern |
| الطول | — | 81,0 cm (31.9 in) |
| طول الجناح | 81,4 cm (32.0 in) | 127,0 cm (50.0 in) |
| الوزن | 1588,0 g (56.02 oz) | 1500,0 g (52.91 oz) |
| النظام الغذائي | -- | Small fish, crustaceans, aquatic insects, and plant material filtered from shallow water by sweeping the … |
| عدد البيض في الوضع | 2-4 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
White-shouldered Ibis only
Roseate Spoonbill only
Roseate Spoonbill
Shallow coastal lagoons, estuaries, mangroves, and freshwater marshes. Nests in colonies in trees and shrubs.
Song & Call Comparison
White-shouldered Ibis
Roseate Spoonbill
Low, grunting and guttural croaking sounds at nesting colonies. Generally quiet. Alarm calls are softer croaks. Vocalizations lack melodic quality; purely functional colony sounds.
Geographic Range & Migration
White-shouldered Ibis
Roseate Spoonbill
Southeastern United States, Caribbean, Mexico, Central America, and South America to Argentina.
حالة الحفاظ
White-shouldered Ibis
Roseate Spoonbill
How to Tell Them Apart
White-shouldered Ibis
Roseate Spoonbill
Vivid pink body plumage with darker carmine on the wings. Bare greenish-grey head. White neck and back. Intensity of pink depends on diet.
Long, flat, spatulate greyish bill used for sweeping through shallow water
About These Birds
White-shouldered Ibis
75–80 cm. Large; dark brown with white shoulder patch; bare red facial skin. Critically Endangered; fewer than 250 birds known. Restricted to lowland Mekong forests of Cambodia, Vietnam, and Myanmar. Threatened by forest clearance and hunting; one of Asia's rarest birds.
Roseate Spoonbill
The roseate spoonbill is the only spoonbill species in the Americas and one of the most striking wading birds in the Western Hemisphere. Like flamingos, their pink color comes from carotenoid pigments in their crustacean prey. Nearly hunted to extinction for their plumes in the 19th century, they have recovered substantially.