Species of Thailand

Thick-billed flowerpecker

Dicaeum agile, Samuel Tickell, 1833

(In Thai: นกกาฝากปากหนา)

The thick-billed flowerpecker (Dicaeum agile) is a tiny bird in the flowerpecker group. They feed predominantly on fruits and are active birds that are mainly seen in the tops of trees in forests. It is a resident bird with a wide distribution across tropical southern Asia from India east to Indonesia and Timor with several populations recognized as subspecies some of which are sometimes treated as full species.

Description

This species flowerpecker is about 10 cm long and has a dark stout beak and short tail. They are dark grey brown above and dull greyish with diffuse streaking on light buffy underparts. The rump is slightly more olive in the nominate race. The bill is dark, somewhat stout and heavy and the iris is reddish. The sexes are not distinguishable in the field and the juvenile has a paler base to the mandible and less streaks on the underside. There are whitish spots at the tip of the tail feathers. The nominate race is found on the plains of the mainland of the Indian Subcontinent. The Sri Lankan population, zeylonense (=zeylonicum, zeylonica), is smaller and darker above. and Subspecies modestum (including pallescens) is found in northeastern India and extends into Burma. Several island forms have been described but some of them are only tentatively kept within this species. These include atjehense of Sumatra, finschi of western Java, tinctum of Sumba, Flores and Alor, obsoletum from Timor, striatissimum, aeruginosum and affine from the Philippines. Several of these such as aeruginosum are considered as full species as they are reproductively isolated and distinct in morphology.

Behaviour and ecology

Like other flowerpeckers they feed mainly on berries, nectar but sometimes take insects. Many of the subspecies are found in dense lowland forests with the exception of the nominate race which is found mainly in cultivated areas or open forest.

Unlike the pale-billed flowerpecker, it does not swallow the berries of Loranthus (some species now in genus Dendrophthoe) and instead wipes the seeds on a branch and feeds on the epicarp. This makes it disperse the parasitic mistletoe locally unlike the other species. In Sri Lanka, they forage at a greater height in the canopy than the pale-billed flowerpecker.

Foraging birds produce a spick call frequently and the tail is jerked from side to side when perched. When displaying the male twitters and flutters over the female. The song is rambling and is mixed with notes that resemble that of the ashy prinia. The feathers of the crown are erected in display and the white bases of the feathers become visible as a crown stripe.

The nest has been described as appearing camouflaged like a dry leaf. It is a pendant purse like structure made of cobwebs or fine plant fibres and is located from 3 to 15 metres high suspended from a thin horizontal branch. Said to frequently nest among the nests of Oecophylla smaragdina ants. The breeding season in southern India is December to March. Both male and female participate in nest building. The usual clutch is about 3 eggs but can vary from 2 to 4. The incubation period is around 13 days and the chick takes around 18 days to fledge.

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Category / Seasonal Status

BCST Category: Recorded in an apparently wild state within the last 50 years

BCST Seasonal status: Resident or presumed resident

Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Dicaeidae
Genus
Dicaeum
Species
Dicaeum agile

Common names

  • Thai: นกกาฝากปากหนา

Synonyms

  • Piprisoma squalidum

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

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Thick-billed flowerpecker
Thick-billed flowerpecker

Range Map

Distribution map of Thick-billed flowerpecker, Dicaeum agile in Thailand
  • Bang Phra Non-Hunting Area
  • Chaloem Rattanakosin National Park
  • Chat Trakan Waterfall National Park
  • Chiang Dao District, Chiang Mai
  • Chiang Dao Wildlife Sanctuary
  • Doi Inthanon National Park
  • Doi Lo District, Chiang Mai
  • Doi Pha Hom Pok National Park
  • Doi Phu Kha National Park
  • Doi Saket District, Chiang Mai
  • Doi Suthep - Pui National Park
  • Erawan National Park
  • Fang District, Chiang Mai
  • Hala-Bala Wildlife Sanctuary
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan National Park
  • Kaeng Krung National Park
  • Kanthararom District, Sisaket
  • Kantharawichai District, Maha Sarakham
  • Khao Ang Rue Nai Wildlife Sanctuary
  • Khao Banthat Wildlife Sanctuary
  • Khao Khitchakut National Park
  • Khao Laem National Park
  • Khao Luang National Park
  • Khao Nam Khang National Park
  • Khao Nan National Park
  • Khao Phanom Bencha National Park
  • Khao Phra - Bang Khram Wildlife Sanctuary
  • Khao Soi Dao Wildlife Sanctuary
  • Khao Sok National Park
  • Khao Yai National Park
  • Khlong Lan National Park
  • Khlong Wang Chao National Park
  • Khon San District, Chaiyaphum
  • Khun Chae National Park
  • Khura Buri District, Phang Nga
  • Kui Buri National Park
  • Mae Ping National Park
  • Mae Rim District, Chiang Mai
  • Mae Wong National Park
  • Muak Lek District, Saraburi
  • Mueang Chiang Mai District, Chiang Mai
  • Mueang Khon Kaen District, Khon Kaen
  • Mueang Krabi District, Krabi
  • Mueang Nakhon Nayok District, Nakhon Nayok
  • Mueang Nan District, Nan
  • Mueang Ranong District, Ranong
  • Mueang Tak District, Tak
  • Nam Nao National Park
  • Non Din Daeng District, Buriram
  • Nong Bong Khai Non-Hunting Area
  • Pa Sang District, Lamphun
  • Pachee River Wildlife Sanctuary
  • Pang Sida National Park
  • Pha Daeng National Park
  • Phu Foi Lom National Park
  • Phu Hin Rong Kla National Park
  • Phu Khiao Wildlife Sanctuary
  • Phu Kradueng National Park
  • Phu Langka National Park
  • Phu Suan Sai National Park
  • Phu Wiang National Park
  • Ramkhamhaeng National Park
  • Sakaerat Environmental Research Station
  • San Kala Khiri National Park
  • Si Racha District, Chonburi
  • Sri Phang-nga National Park
  • Takua Pa District, Phang Nga
  • Thale Ban National Park
  • Thap Lan National Park
  • Thong Pha Phum District, Kanchanaburi
  • Thung Salaeng Luang National Park
  • Thung Yai Naresuan Wildlife Sanctuary
  • Ton Nga-Chang Wildlife Sanctuary
  • Ton Pariwat Wildlife Sanctuary
  • Umphang Wildlife Sanctuary
  • Wang Saphung District, Loei
Range map of Dicaeum agile in Thailand