Annakolibri vs Green-backed Firecrown
Calypte anna verglichen mit Sephanoides sephaniodes
Side-by-Side Comparison
| Merkmal | Annakolibri | Green-backed Firecrown |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Sephanoides sephaniodes |
| 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) | 12,0 cm (4.7 in) |
| Gewicht | 4,3 g (0.15 oz) | 6,583333333333333 g (0.23 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore foraging at diverse temperate-zone flowers in Chile and Argentina, including Fuchsia and Embothrium. Takes … |
| Gelegegröße | 2 | 1-2 |
| 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.
Green-backed Firecrown
Crisp, whistled descending phrase; clean notes stepping down smoothly with precision and musical elegance at dawn.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Green-backed Firecrown
Found along the length of Chile and western Argentina in temperate forest and scrub. Sea level to 2,000 m. Migratory.
Erhaltungsstatus
Annakolibri
Green-backed Firecrown
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
Green-backed Firecrown
Black Metaltail: males shining green with black-metallic gorget; white postocular stripe; females green above; white-spotted buff underparts
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.
Green-backed Firecrown
A medium-sized hummingbird (10-11 cm) found in temperate forests of southern South America from central Chile and Argentina to Tierra del Fuego. Green plumage with coppery-green crown. The southernmost hummingbird species, tolerating sub-zero temperatures. Nectarivore of native Fuchsia and Embothrium.