Annakolibri vs Racket-tipped Thorntail
Calypte anna verglichen mit Discosura longicaudus
Side-by-Side Comparison
| Merkmal | Annakolibri | Racket-tipped Thorntail |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Discosura longicaudus |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 8,6 cm (3.4 in) |
| Gewicht | 4,3 g (0.15 oz) | 3,35 g (0.12 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Amazonian forest canopy. Forages at Inga and other legume flowers; supplements with small … |
| Gelegegröße | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Annakolibri
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Annakolibri
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Racket-tipped Thorntail
Melodic, ascending scale of clear notes; bright flute-like tones climbing smoothly, characteristic of morning territorial song.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Racket-tipped Thorntail
Found in humid lowland forest from Colombia and Venezuela east through the Guianas and Amazonian Brazil. 0–600 m.
Erhaltungsstatus
Annakolibri
Racket-tipped Thorntail
How to Tell Them Apart
Annakolibri
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black bill
Racket-tipped Thorntail
Greenish Puffleg: males brilliant metallic green; glittering blue gorget; white flanks; white leg puffs; females green above with spots
About These Birds
Annakolibri
Der Annakolibri ist der häufigste Kolibri entlang der Pazifikküste und eine von nur drei Kolibriarten, die ganzjährig in den USA verweilen. Männchen zeigen spektakuläre Sturzflüge aus 40 Metern Höhe und fangen sich mit einem lauten, von den Schwanzfedern erzeugten Zwitschern ab. Nachts kann ihre Körpertemperatur nahezu auf Umgebungstemperatur absinken, um Energie zu sparen.
Racket-tipped Thorntail
A tiny hummingbird (7-8 cm plus long tail rackets in males) found in humid lowland forests from Venezuela through the Guianas and Amazonia. Males have elongated outer tail feathers with distinctive racket-shaped tips. Nectarivore of forest canopy.