Annakolibri vs Coppery Thorntail
Calypte anna verglichen mit Discosura letitiae
Side-by-Side Comparison
| Merkmal | Annakolibri | Coppery Thorntail |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Discosura letitiae |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Data Deficient |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 7,5 cm (3.0 in) |
| Gewicht | 4,3 g (0.15 oz) | 2,8 g (0.10 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore with elongated tail foraging at high canopy blooms. Catches small insects near flowering trees. |
| Gelegegröße | 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.
Coppery Thorntail
Soft, high peep followed by short buzzy trill; quiet introductory note launching into brief rough continuation.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Coppery Thorntail
Known only from Bolivia; restricted range in humid lowland forest of the Beni region. 150–500 m elevation.
Erhaltungsstatus
Annakolibri
Coppery 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
Coppery Thorntail
Rufous Puffleg: males shining bronze-green; iridescent teal gorget; white underparts; large rufous leg puffs; females duller 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.
Coppery Thorntail
A tiny hummingbird (7-8 cm) known from very few specimens collected in Bolivia. Coppery plumage. Almost nothing known about its ecology or current status. One of the most mysterious hummingbirds; possibly rare, possibly overlooked. Further fieldwork needed.