Anna's Hummingbird vs Spot-throated Hummingbird
Calypte anna से तुलना Thaumasius taczanowskii
Side-by-Side Comparison
| विशेषता | Anna's Hummingbird | Spot-throated Hummingbird |
|---|---|---|
| वैज्ञानिक नाम | Calypte anna | Thaumasius taczanowskii |
| गण | Caprimulgiformes | Caprimulgiformes |
| कुल | Trochilidae | Trochilidae |
| संरक्षण स्थिति | Least Concern | Least Concern |
| लंबाई | 10.0 cm (3.9 in) | — |
| पंखों का फैलाव | 12.0 cm (4.7 in) | — |
| वजन | 4.3 g (0.15 oz) | 6.833333333333333 g (0.24 oz) |
| आहार | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore visiting diverse flowering plants; supplements the high-sugar nectar diet with small insects and spiders … |
| अंडों की संख्या | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
साझा आवास
Anna's Hummingbird only
कोई नहीं
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Anna's Hummingbird
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.
Spot-throated Hummingbird
Rapid, mechanical clicking in even dry rhythm; staccato notes forming steady sequence during active day.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Spot-throated Hummingbird
Found in Andean foothills of Peru at 1,500-3,000 m elevation. A Peruvian near-endemic of montane scrub.
संरक्षण स्थिति
Anna's Hummingbird
Spot-throated Hummingbird
How to Tell Them Apart
Anna's Hummingbird
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
Spot-throated Hummingbird
About These Birds
Anna's Hummingbird
Anna's hummingbird is the most common hummingbird along the Pacific coast and one of only three species resident in the United States year-round. Males perform spectacular dive displays, plummeting from 40 meters and pulling up with a loud chirp produced by tail feathers. Their body temperature can drop to near ambient at night to conserve energy.
Spot-throated Hummingbird
A medium-sized hummingbird (10-11 cm) found in Andean foothills of Peru at 1,500-3,000 m. Green plumage with spotted throat. Nectarivore of montane scrub and forest edges. Named after the Polish ornithologist Władysław Taczanowski. A Peruvian near-endemic.