Blue-throated Barbet Psilopogon asiaticus Scientific name definitions

Anand Krishnan
Version: 2.0 — Published April 21, 2023



This species excavates cavities in trees to nest, building a nest chamber within. Although the nesting of Asian barbets is chronically understudied, this page outlines the information that exists for this species.


March–July (egg laying reported in May). Apparently double-brooded in lower elevations of Vietnam (1).

Nest Site

Selection Process

Information needed.

Site Characteristics

Nest cavities are located in trees either in forest or open cultivated land, often on the underside of a sloping or horizontal branch. Nests may be 1.5–8 m above ground or even higher, but most are between 3–6 m. Nests have been recorded inside ravines with flowing water and in the trees Pinus roxburghii and Ficus infectoria (1).


Construction Process

Both sexes excavate the nest.

Structure and Composition

The chamber may be either unlined or lined with wood chips, but it sometimes appears to use grasses or wool at the bottom of the chamber as a lining (1).


The nest entrance is 4–7 cm in diameter, leading to a short downward tunnel of up to 30 cm, ending in a nest chamber about 10–15 cm in diameter (1).

Maintenance or Reuse of Nests

The bird appears to reuse nest sites in multiple years and also takes over old woodpecker hollows (1). There is a report of an old nest of this species being taken over by an Oriental Magpie-Robin (Copsychus saularis)(42).



Blunt ovoid with slight elongation (1).


Egg size from various sources, compiled in Short and Horne (43, 44, 45, 1):

Region Egg size (mm) Sample size
India 26.7–30 x 19.3–22.1 (mean 27.8 x 20.5) 30
Northeast India 28.3–31 x 20–23 (mean 29.2 x 21) 15
India 27.7 x 21.1
Myanmar 29.62 x 20.29


Information needed.

Eggshell Thickness

No quantitative data, but described as 'thin-shelled' (1).

Color and Surface Texture

Eggs are white with a slight gloss (1).

Clutch Size

Clutches are 2–5 eggs, but mostly 3–4 (1).

Egg Laying

Information needed.


Incubation Period

14 days (1).

Parental Behavior

Both parents incubate, with one being present at all times so that the eggs are never left unattended (1).


Information needed.

Young Birds

Information needed.

Parental Care

Both parents feed the young and remove fecal sacs from the nest (1).

Cooperative Breeding

Information needed.

Brood Parasitism by Other Species

Information needed.

Fledgling Stage

Fledging stage remains poorly known. The young apparently staying with the parents for a short time after fledging (1).

Immature Stage

Information needed.

Recommended Citation

Krishnan, A. (2023). Blue-throated Barbet (Psilopogon asiaticus), version 2.0. In Birds of the World (N. D. Sly, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bltbar2.02