White-collared Swift vs Sao Tome Spinetail
Streptoprocne zonaris so với Zoonavena thomensis
Side-by-Side Comparison
| Thuộc Tính | White-collared Swift | Sao Tome Spinetail |
|---|---|---|
| Tên Khoa Học | Streptoprocne zonaris | Zoonavena thomensis |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 42,5 cm (16.7 in) | 21,9 cm (8.6 in) |
| Khối Lượng | 106,45 g (3.75 oz) | 8,0 g (0.28 oz) |
| Chế Độ Ăn | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. |
| Số Trứng | 2 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
Sao Tome Spinetail
Sharp, high-frequency twittering with staccato clicking notes; rapid-fire chips strung together in buzzy aerial sequences.
Geographic Range & Migration
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
Sao Tome Spinetail
Endemic to São Tomé Island in the Gulf of Guinea. Resident in lowland forest and forest edge. Small island population vulnerable to habitat loss.
Tình Trạng Bảo Tồn
White-collared Swift
Sao Tome Spinetail
How to Tell Them Apart
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
Sao Tome Spinetail
Tiny; dark blackish-brown upperparts; white rump patch; pale whitish underparts; short spiny tail; São Tomé Island endemic; very similar to Madagascar Spinetail but restricted to Gulf of Guinea; one of …
About These Birds
White-collared Swift
A very large swift (20-22 cm, wingspan 45-55 cm) with a bold white collar band, the largest New World swift. Found from Mexico to southern Brazil and the Caribbean. Aerial insectivore, foraging in large, noisy flocks over forests and cities. Nests behind waterfalls and in caves.
Sao Tome Spinetail
A medium-sized spinetail swift (12-13 cm) endemic to the islands of São Tomé and Príncipe in the Gulf of Guinea. Dark plumage. Aerial insectivore, foraging over forest canopy. Colonial nester. Restricted range on two small islands. Classified as Near Threatened.