White-tipped Sicklebill vs Allen's Hummingbird
Eutoxeres aquila مقارنةً بـ Selasphorus sasin
Side-by-Side Comparison
| السمة | White-tipped Sicklebill | Allen's Hummingbird |
|---|---|---|
| الاسم العلمي | Eutoxeres aquila | Selasphorus sasin |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 14,1 cm (5.6 in) | 8,1 cm (3.2 in) |
| الوزن | 11,366666666666667 g (0.40 oz) | 3,1500000000000004 g (0.11 oz) |
| النظام الغذائي | Feeds on floral nectar and small invertebrates; males defend nectar-rich territories against other hummingbirds. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| عدد البيض في الوضع | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-tipped Sicklebill
Rapid, sibilant twittering; light, feathery notes cascading quickly with barely perceptible pauses between loose phrases.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
White-tipped Sicklebill
Found in humid forests from Costa Rica south through Panama to western Ecuador. Resident at 200–1,600 m in dense undergrowth with Heliconia.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
حالة الحفاظ
White-tipped Sicklebill
Allen's Hummingbird
How to Tell Them Apart
White-tipped Sicklebill
Dark brown and buff striped underparts; green-bronze upperparts; white-tipped tail feathers; extremely curved sickle-shaped bill; sexes similar; Andean heliconia specialist with diagnostic strongly decurved bill and boldly streaked underparts.
Allen's Hummingbird
About These Birds
White-tipped Sicklebill
A medium-sized hummingbird (12-14 cm) with a dramatically decurved bill, adapted for extracting nectar from curved Heliconia flowers. Green plumage with a buff-streaked breast and white-tipped tail. Found in humid forests from Costa Rica to Peru. A specialized pollinator.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.