Annakolibri vs Garden Emerald
Calypte anna verglichen mit Chlorostilbon assimilis
Side-by-Side Comparison
| Merkmal | Annakolibri | Garden Emerald |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Chlorostilbon assimilis |
| 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) | 9,0 cm (3.5 in) |
| Gewicht | 4,3 g (0.15 oz) | 3,55 g (0.13 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on floral nectar in lowland Panama gardens and woodland. Catches small insects and spiders … |
| 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.
Garden Emerald
Thin, sibilant buzz with wavering quality; soft high trill with gentle tremolo effect during hover display.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Garden Emerald
Found in humid lowlands from Costa Rica to northern Colombia on the Pacific slope. Resident in gardens and second growth.
Erhaltungsstatus
Annakolibri
Garden Emerald
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
Garden Emerald
Plain-bellied Emerald: males with brilliant violet gorget; metallic green above; plain whitish belly; females green above; spotted
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.
Garden Emerald
A small hummingbird (8-9 cm) found in humid lowlands from Costa Rica to northern Colombia. Bright green plumage. Nectarivore of gardens, second growth, and forest edges. Closely related to Canivet's Emerald. Found primarily on the Pacific slope.