Bolivian Blackbird
Oreopsar bolivianus
Large, brown-winged blackbird of dry valleys in the high Andes of central and northern Bolivia. Prefers sparsely vegetated areas, such as Polylepis woodland, agricultural areas, towns, cactus forest, and scrublands. Brown wings are distinctive, but note that second-year blackbirds of other species (Chopi Blackbird, Shiny Cowbird) can show contrastingly brown retained juvenile wing feathers. Generally forages singly or in small groups, and sings from exposed perches. Song a simple, repeated two-part “pe-chew” given 3-8 times.
Taxonomy
- Scientific name
- Oreopsar bolivianus
- Authority
- Sclater, WL, 1939
- Order
- Passeriformes
- Family
- Thraupidae
- Genus
- Oreopsar
Range and habitat
- Migration
- Resident species
Conservation
- Population trend
- stable
Photos
Distribution
Bird Calls
Other Birds

Chestnut-bellied Cotinga
Doliornis remseni
Rare bird of stunted treeline forest in the high Andes of Ecuador and southern Colombia. Mostly gray with a chestnut belly; male has a black cap. Usually seen perched atop a tree or tall bush, and perhaps more likely to be encountered early in the morning on dry days. Call is a raspy, nasal “greh!”

Marsh Sandpiper
Tringa stagnatilis
Slender pale sandpiper with a fine, needle-like bill. Note the overall slim and elegant shape, with very long and slender greenish legs: suggests a much smaller Greenshank that’s been to ballet school. In flight appears dark above with broad white stripe up middle of back; long legs project well past tail tip. Usually found singly or mixed in with other waders in varied fresh to brackish wetland habitats, usually with open water. Feeds by wading in water, picking with its bill. Repetitive mellow calls somewhat similar to Greenshank, but rather monotone and with a sharper quality.

Tristram's Warbler
Curruca deserticola
Small, long-tailed Curruca warbler, very similar to Spectacled and Subalpine Warblers. Males are distinctive with very deep rusty underparts, a rusty throat (sometimes paler mid-throat), rusty wings, and a hint of pale buff moustache. Females are pale brown and less distinctive with normally rather warm-toned underparts. Breeds on mountain slopes covered in dense, low bushes, tamarisk scrub, and vegetated desert wadis; non-breeding habitat is sometimes lower in elevation, but typically similarly open and scrubby. Song a scratchy whistle. Call a low "trrrrr."
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