Atlantic White Tern vs Hartlaub's Gull
Gygis alba verglichen mit Larus hartlaubii
Side-by-Side Comparison
| Merkmal | Atlantic White Tern | Hartlaub's Gull |
|---|---|---|
| Wissenschaftlicher Name | Gygis alba | Larus hartlaubii |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 50,4 cm (19.8 in) | 54,0 cm (21.3 in) |
| Gewicht | 138,0 g (4.87 oz) | 287,5 g (10.14 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Atlantic White Tern
Least Concern
Hartlaub's Gull
About These Birds
Atlantic White Tern
Atlantic White Tern: 28–33 cm, wingspan 76–87 cm, ethereally white seabird with blue-grey bill, blue orbital ring, and large dark eyes. Breeds on tropical Atlantic islands including Ascension and Saint Helena; related species widespread across the Indo-Pacific. Nests on bare branches with no nest material. Feeds on small fish near the surface.
Hartlaub's Gull
Hartlaub's Gull, 38–40 cm, is endemic to the Benguela Current coast of Namibia and South Africa. White with grey mantle, dark red bill. Resident; forages on beaches, at harbours, and over cold upwelling waters for fish offal and marine invertebrates. Population stable but range restricted.