Ringed Teal vs Black-headed Duck
Callonetta leucophrys verglichen mit Heteronetta atricapilla
Side-by-Side Comparison
| Merkmal | Ringed Teal | Black-headed Duck |
|---|---|---|
| Wissenschaftlicher Name | Callonetta leucophrys | Heteronetta atricapilla |
| Ordnung | Anseriformes | Anseriformes |
| Familie | Anatidae | Anatidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 33,8 cm (13.3 in) | 34,7 cm (13.7 in) |
| Gewicht | 345,0 g (12.17 oz) | 528,5 g (18.64 oz) |
| Ernährung | Eats seeds, plant material, and aquatic invertebrates; filter-feeds in shallow water; broadly omnivorous and seasonally … | Parasitic; adults may feed on aquatic plants, seeds, and invertebrates in South American marshes. Diet … |
| Gelegegröße | 6-12 | 2 |
| Population Trend | — | — |
Habitat Comparison
Ringed Teal
Subtropical forests, gallery woodlands, and wooded wetland margins in Bolivia, Brazil, Paraguay, Uruguay, and northeastern Argentina. Nests in tree hollows near water. Requires forested streams and rivers.
Song & Call Comparison
Ringed Teal
Male utters a soft, high-pitched squeak; female gives a low, grunting kow note. Courtship involves quiet twittering exchanges between pairs in South American gallery forests.
Black-headed Duck
Male gives a soft, raspy peeping note; female produces a muted quack. An obligate brood parasite with reduced vocalizations; subdued calls suit its secretive lifestyle among Argentine reeds.
Geographic Range & Migration
Ringed Teal
Breeds in the southern Palearctic from the Iberian Peninsula to Central Asia; winters mainly in sub-Saharan Africa.
Black-headed Duck
Resident in southern South America from southern Brazil and Bolivia south to Argentina and Chile. Found on lakes and marshes in open lowlands.
Erhaltungsstatus
Ringed Teal
Black-headed Duck
How to Tell Them Apart
Ringed Teal
Males have gray head with black crown; pink breast with black spots; chestnut back; buff-white flanks with fine barring. White facial blaze. Females brown with pale supercilium and white spots …
Black-headed Duck
Male has distinctive jet-black head and neck, warm chestnut-brown back, and pale buff underparts; blue-grey bill with red base. Female is streaked brown above with pale supercilium and whitish underparts.
About These Birds
Ringed Teal
A small ornate teal. Males have a pink-chestnut breast, grey flanks, and grey-brown back with dark green speculum; females are brown with distinctive white eye-ring and spotted flanks. Found in subtropical forests of South America. Nests in tree cavities. Perches and roosts in trees.
Black-headed Duck
A small diving duck (~530 g) of South America, family Anatidae, and the sole member of genus Heteronetta. Inhabits freshwater marshes and lakes in Argentina, Bolivia, Brazil, Chile, and Uruguay. Unique among waterfowl as an obligate brood parasite, laying eggs in nests of coots and other waterbirds. Feeds on seeds and aquatic invertebrates. Least Concern.