Eastern Striolated-Puffbird
Nystalus striolatus
A chunky species with a large head and a strong bill. Has heavily streaked cheeks, breast, and flanks and a dark brown crown and wings. Note the bushy white chin and pale eyes. Inhabits the canopy and sub-canopy of humid forest and forest edge, where it sits motionless for long periods. Sings a far-carrying melancholic and fluted series of “whip, whi-wheeu, wheeeeeuu” notes.
Identification
The eastern striolated puffbird is about 20 cm (7.9 in) long and weighs 43 to 47 g (1.5 to 1.7 oz). Its crown is dark brown with wide rufous bars, blackish toward the rear. Its hindneck has a broad buffy collar. Below that is a blackish band and the rest of the upperparts are dark brown with reddish buff spots and (at the rear) bars. The tail is narrow and blackish brown with thin rufous bars. The face has a white spot in front of the eye; the rest of the face is buffy with fine dusky streaks. The chin is white and the throat ochracous with fine blackish streaks that gets lighter to the rear with heavier stripes. The center of the belly is whiter and unstreaked. The bill is mostly olive green, the eye pale ochre, the legs brown, and the feet dirty green.
Taxonomy
The International Ornithological Committee (IOC), the South American Classification Committee of the American Ornithological Society (SACC), and the Clements taxonomy treat the eastern striolated puffbird as a species. According to them, the original striolated puffbird (Nystalus striolatus) was found to include a previously undefined species that is now the western striolated puffbird (N. obamai); it had not been recognized even as a subspecies. N. striolatus was renamed "eastern striolated puffbird" after the split. It has two subspecies, the nominate N. s. striolatus and N. s. torridus. However, BirdLife International's Handbook of the Birds of the World (HBW) retains the English name "striolated puffbird" for N. striolatus and assigns N. s. striolatus, N. s. obamai, and N. s. torridus as subspecies of it. To further complicate matters, N. s. torridus has been suggested as a species in its own right.
- Scientific name
- Nystalus striolatus
- Authority
- (Pelzeln, 1856)
- Order
- Piciformes
- Family
- Bucconidae
- Genus
- Nystalus
Range and habitat
The nominate subspecies of eastern striolated puffbird is found in the south central Amazon Basin, in Brazil between the Madeira and Tapajós rivers, and into extreme northeastern Bolivia (Santa Cruz Department). N. s. torridus is found in northeastern Amazonian Brazil south of the Amazon River and east of the Tapajós River. The species inhabits a variety of landscapes including the edges of humid tropical, terra firme, and swamp forests, and also transitional forest. It typically occurs near water or clearings, and tends to stay in the subcanopy or canopy. The species is not known to migrate.
- Migration
- Resident species
Behavior
The foraging behavior and diet of the eastern striolated puffbird have not been documented. Most puffbirds hunt by sallying from a perch to pluck large insects and small vertebrates from foliage or bark.<p>The breeding phenology of the eastern striolated puffbird has not been described. Other members of its genus nest in earthen tunnels.<p>The eastern striolated puffbird's song is "a soft, sad whistle, 'whip, whiwheeu, wheeeeeuu,' with [a] distinctive cadence." There are some differences between the songs of the two subspecies.
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
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Male in breeding plumage has a golden-yellow cap covering the forehead and crown, and a blackish face and throat. Dark brown above with rusty edges to feathers, and buffy white below with longitudinal dark streaks on the flanks and upper breast. Non-breeding males, females, and juveniles more similar to other weavers; they have a yellowish buff eye-brow that extends down around the back of the face, streaky flanks, and dark brown upperparts with long streaks on the back. More partial to water than Baya Weaver, nesting around reedbeds in wetlands. Noisy near breeding colonies. Males make a continuous chirpy “cheer” or “teaur” call, not as loud as Baya Weaver’s.
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