Annakolibri vs Mexican Sheartail
Calypte anna verglichen mit Doricha eliza
Side-by-Side Comparison
| Merkmal | Annakolibri | Mexican Sheartail |
|---|---|---|
| Wissenschaftlicher Name | Calypte anna | Doricha eliza |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Trochilidae | Trochilidae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | 10,0 cm (3.9 in) | — |
| Flügelspannweite | 12,0 cm (4.7 in) | 7,7 cm (3.0 in) |
| Gewicht | 4,3 g (0.15 oz) | 2,5 g (0.09 oz) |
| Ernährung | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of dry scrub and coastal dunes, visiting Agave and Ipomoea flowers. Supplements with insects … |
| 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.
Mexican Sheartail
Melodic, three-note ascending call; pure warm tones stepping upward smoothly, given clearly from tall perch.
Geographic Range & Migration
Annakolibri
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Mexican Sheartail
Endemic to the Yucatán Peninsula of Mexico and Cozumel Island. Classified as Near Threatened due to habitat destruction.
Erhaltungsstatus
Annakolibri
Mexican Sheartail
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
Mexican Sheartail
Xantus's Hummingbird: males with glittering green gorget; metallic green above; rufous tail; cinnamon underparts; sexually dimorphic
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.
Mexican Sheartail
A tiny hummingbird (8-9 cm) endemic to the Yucatán Peninsula of Mexico and Cozumel Island. Males have elongated, slender outer tail feathers. Nectarivore of coastal scrub and gardens. Classified as Near Threatened due to habitat destruction in its limited range.