Birds diurnal

Band-tailed Sierra-Finch

Rhopospina alaudina

A striking inhabitant of the Andean slopes, the Band-tailed Sierra-Finch is famous for the brilliant white flash of its tail during flight. This hardy songbird brings a touch of slate-blue elegance to the rugged, high-altitude landscapes of Western South America.

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Quick Identification

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Size

Length: 13-15 cm (5.1-5.9 in); Weight: 18-25 g (0.6-0.9 oz)

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Colors

Males feature a bluish-gray head and back with a white belly and a distinct white band across the tail. Females are more understated with streaked brownish-tan plumage.

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Key Features

Broad white band across the middle of the tail, visible in flight
Male has a distinctive dark bluish-gray 'hood' and upperparts
Small, pointed yellowish to horn-colored bill
White lower belly and undertail coverts contrasting with gray chest

When You’ll See Them

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Activity pattern diurnal

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Peak hours 7:00 AM – 10:00 AM and 3:30 PM – 5:30 PM

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Season Year-round, with increased activity during the spring breeding season (September–December in most regions).

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Diet Primarily a granivore that eats seeds from grasses and shrubs, supplemented by small insects and occasional flower nectar or buds.

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Habitat Arid and semi-arid shrublands, rocky Andean slopes, agricultural edges, and high-altitude gardens.

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Behavior

The Band-tailed Sierra-Finch is a social and active bird, frequently seen in small flocks, especially during the non-breeding season. They are primarily ground-foragers, spending much of their day hopping through dry scrub and rocky terrain in search of fallen seeds. Their flight is notably undulating; when they take off, the eponymous white band on their tail flashes brightly, serving as a social signal to other members of the flock.

During the breeding season, males become more territorial and conspicuous. They are known for their display flights, where they rise into the air while singing a series of buzzy, metallic notes before parachuting back down to a perch or the ground. While generally shy in the deep wild, they have adapted well to human presence in rural Andean towns, often visiting the outskirts of gardens and agricultural fields where water and food are more reliable.

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Camera Tips

To capture the Band-tailed Sierra-Finch on your backyard camera, placement is everything. Since these birds are habitual ground-feeders, position your camera low to the ground—no higher than 6 to 12 inches. Aim the lens toward an open patch of dirt or short grass near the base of a native shrub. Because they are often found in arid environments, a low-profile birdbath or a shallow water dripper is an irresistible lure. Position your camera to face the water source from the north or south to avoid the harsh glare of the Andean sun, which can wash out the subtle grays of the male's plumage.

Technical settings are crucial for this species due to their quick, hopping movements. Use a fast trigger speed (0.2 seconds or less if your camera supports it) and set the burst mode to take 3-5 photos per trigger. This increases your chances of catching the bird with its tail spread, revealing the diagnostic white band that gives the species its name. If you are using video, a high frame rate (60fps) is recommended to capture the nuances of their rapid foraging behavior and display hops.

Seasonally, you should look for them near residential areas during the drier months when natural food sources in the high scrub become scarce. Providing a mix of small birdseeds or crushed grains on a flat rock can help draw them into the camera's focal zone. Avoid placing the bait in deep shadows; these birds prefer bright, open spots where they can keep an eye out for predators like hawks. Ensure the area in front of the lens is clear of tall swaying grass to prevent false triggers during windy mountain afternoons.

Similar Species

Species that look similar or are commonly confused with Band-tailed Sierra-Finch.

Plumbeous Sierra-Finch

Lacks the white band on the tail and has a more uniform gray color across the entire underbody.

Grey-hooded Sierra-Finch

Has a much brighter yellow belly and lacks the distinctive white tail band of the Band-tailed.

Mourning Sierra-Finch

Male has a blacker throat and breast, and lacks the clean white tail band seen in flight.

Frequently Asked Questions

Band-tailed Sierra-Finch are most active during the early morning hours just after sunrise and again in the late afternoon. They tend to rest in the shade of shrubs during the heat of midday.

The best way to attract Band-tailed Sierra-Finch is by providing a clean, shallow water source and maintaining native arid-land shrubs. They are also attracted to ground-scattered birdseed in open, sunny areas.

Their diet consists mainly of small seeds from grasses and weeds. During the nesting season, they also hunt for small insects to provide protein for their chicks.

They are common in rural and suburban areas that border their natural high-altitude shrubland habitats, particularly in cities like Quito, Lima, and Santiago that are close to the mountains.

The most reliable way is the tail; the Band-tailed Sierra-Finch has a prominent white band across the tail, while the Plumbeous Sierra-Finch has an entirely dark tail. Additionally, the Band-tailed male has a whiter belly.

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