Chestnut-vented Warbler
Curruca subcoerulea
Distinctive gray bird with a pale eye, streaked throat, rufous vent, and large white patches on the tail. Found in a variety of habitats with thick shrubs, including fynbos, karoo, semi-desert, and savanna. A fairly skulking species that is usually detected by voice: an exuberant mixture of ratcheting notes, chatters, and whistles. Similar to Layard’s Warbler, but easily distinguished by rufous vent and more heavily streaked throat.
Identification
The chestnut-vented warbler is 14–15 cm long and weighs around 16 g. Its upperparts are grey-brown, and the tail is black with a broad white band at its tip. This warbler has a white eye ring. The throat is grey with heavy dark streaking, the breast and belly are grey, and the vent area is bright chestnut. The legs are black and the eyes are grey. The sexes are similar, but the juvenile has an unstreaked throat. The call is a loud fluted cheerup-chee-chee.<p>Layard's warbler, Curruca layardi, is the only similar species, but is paler, has more white in the tail, and lacks the chestnut vent.
Taxonomy
The first formal description of the chestnut-vented warbler was by the French naturalist Louis Pierre Vieillot in 1817. He introduced the binomial name Sylvia subcœrulea using the œ ligature. The specific epithet would normally be spelled subcaerulea or subcærulea and comes from the Latin sub meaning somewhat or beneath and caeruleus for blue. In modern Latin subcaeruleus is used to indicate pale blue. Most authorities use the standard spelling subcaerulea but some use the original spelling subcoerulea.
- Scientific name
- Curruca subcoerulea
- Authority
- (Vieillot, 1817)
- Order
- Passeriformes
- Family
- Sylviidae
- Genus
- Curruca
Range and habitat
- Migration
- Resident species
Behavior
The chestnut-vented warbler builds a cup nest low in vegetation. This species is monogamous, pairing for life. It is usually seen alone or in pairs, moving through vegetation as it forages for insects and other small invertebrates.
Conservation
This common species has a large range, with an estimated extent of 2,800,000 km2. The population size is believed to be large, and the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
- Population trend
- stable
Photos
Distribution
Bird Calls
Other Birds
Summer Tanager
Piranga rubra
Large tanager with a hefty bill. Adult males are completely red; immature males are dull yellow-olive with blotchy patches of red. Females are variable in color, ranging from pale dull yellow to brighter orange. Can be confused with female Scarlet Tanager; Summer has a longer, paler bill and less contrast between wing and body color. Also compare with dustier-looking, stouter-billed Hepatic Tanager. Breeds in mature forests, favoring mixed deciduous and pine in the southeastern U.S. and riparian corridors in the western U.S. and northern Mexico. Extensive winter range from Mexico to Bolivia, where it can be found in any wooded area. Often gives a short, descending rattle “pit-a-tuck.”
Crested Gallito
Rhinocrypta lanceolata
Striking, mostly terrestrial thrush-sized bird of thorn scrub in the Chaco bioregion, from central Argentina to SE Bolivia. Plain grayish-brown plumage with rufous flanks and streaked crest distinctive. Generally solitary or in pairs.
Red-bellied Grackle
Hypopyrrhus pyrohypogaster
Unmistakable Colombian endemic: large, long-tailed, and all-black with a bright red belly and piercing yellow eye. Sexes similar. Found in small flocks in the canopy of cloud forest from around 1,000–2,400 m, sometimes in mixed flocks with jays or caciques. Listen for loud shrieks and gurgles.
Start Your Bird Watching Journey
Identify a bird outdoors and keep the field guide close for your next observation.