Species of Thailand

Bronzed drongo

Dicrurus aeneus, Louis Jean Pierre Vieillot, 1817

(In Thai: นกแซงแซวเล็กเหลือบ)

The bronzed drongo (Dicrurus aeneus) is a small Indomalayan bird belonging to the drongo group. They are resident in the forests of the Indian Subcontinent and Southeast Asia. They capture insects flying in the shade of the forest canopy by making aerial sallies from their perches. They are very similar to the other drongos of the region but are somewhat smaller and compact with differences in the fork depth and the patterns of gloss on their feathers.

Description

This drongo is somewhat smaller than the black drongo and has more metallic gloss with a spangled appearance on the head, neck and breast.

The lores are velvety and the ear coverts are duller. The tail is slender and well forked with the outer tail feathers flaring outward slightly. Immatures have their axillaries tipped in white. The young bird is duller and brownish with less spangling.

The nominate race is found in India and extending until the northern part of the Malay Peninsula. Specimens from southern India are however very similar in morphometrics to those from malayensis of Burma and the size variation may be clinal. The subspecies from China kwangsiensis is treated as synonymous with aeneus. Subspecies malayensis is found from Selangor south into, Sumatra and Borneo. Taiwan is home to braunianus in the mountains of the interior.

Distribution

The bronzed drongo is found in the Western Ghats and Eastern Ghats of India and the lower Himalayas from western Uttaranchal eastwards into Indochina and Hainan, the Malay Peninsula, Sumatra and northern Borneo. This species is usually found in moist broadleaved forest. This species is exclusively found in forested areas.

Behaviour and ecology

They are found singly or in a group of two to three. They actively forage for insects under the forest canopy by making aerial sallies, often returning to their favourite perches. They sometimes join mixed-species foraging flocks. They are very good in mimicking calls of many other bird species which is a trait shared with many Drongo species. The breeding season is February to July. Three or four pinkish to brownish eggs are laid in a cup nest in a tree. The eggs are darker on the broad end and often have cloudy spots. The nest is covered in cobwebs and often appears whitish. These are aggressive and fearless birds, 24 cm in length, and will attack much larger species if their nest or young are threatened.

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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
Dicruridae
Genus
Dicrurus
Species
Dicrurus aeneus

Common names

  • Thai: นกแซงแซวเล็กเหลือบ

Synonyms

  • Chaptia aenea

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

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Bronzed drongo
Bronzed drongo

Range Map

Distribution map of Bronzed drongo, Dicrurus aeneus in Thailand
  • Ao Phang-Nga National Park
  • Ban Laem District, Phetchaburi
  • Bang Phra Non-Hunting Area
  • Chae Son National Park
  • Chiang Dao District, Chiang Mai
  • Chiang Dao Wildlife Sanctuary
  • Chiang Khong District, Chiang Rai
  • Chiang Saen District, Chiang Rai
  • Doi Inthanon National Park
  • Doi Lang
  • Doi Lo District, Chiang Mai
  • Doi Pha Hom Pok National Park
  • Doi Phu Kha National Park
  • Doi Suthep - Pui National Park
  • Erawan National Park
  • Hala-Bala Wildlife Sanctuary
  • Huai Kha Khaeng Wildlife Sanctuary
  • Huai Nam Dang National Park
  • Kaeng Khoi District, Saraburi
  • Kaeng Krachan National Park
  • Kaeng Som Maew Queen Sirikit Forest Park
  • Kaset Sombun District, Chaiyaphum
  • Khao Ang Rue Nai Wildlife Sanctuary
  • Khao Chamao - Khao Wong National Park
  • Khao Khitchakut National Park
  • Khao Laem National Park
  • Khao Lak - Lam Ru National Park
  • Khao Luang National Park
  • Khao Nan National Park
  • Khao Phra - Bang Khram Wildlife Sanctuary
  • Khao Phra Thaeo Wildlife Sanctuary
  • Khao Soi Dao Wildlife Sanctuary
  • Khao Sok National Park
  • Khao Yai National Park
  • Khon San District, Chaiyaphum
  • Khun Chae National Park
  • Khun Korn Forest Park
  • Khun Nan National Park
  • Khun Tan District, Chiang Rai
  • Kromluang Chumphon Wildlife Sanctuary
  • Kui Buri National Park
  • Lam Nam Kok National Park
  • Mae Moei National Park
  • Mae Ping National Park
  • Mae Rim District, Chiang Mai
  • Mae Sai District, Chiang Rai
  • Mae Taeng District, Chiang Mai
  • Mae Wong National Park
  • Mueang Chiang Mai District, Chiang Mai
  • Mueang Khon Kaen District, Khon Kaen
  • Mueang Krabi District, Krabi
  • Mueang Nakhon Nayok District, Nakhon Nayok
  • Mueang Phuket District, Phuket
  • Mueang Sukhothai District, Sukhothai
  • Mueang Tak District, Tak
  • Nam Nao National Park
  • Namtok Sam Lan National Park
  • Nong Bong Khai Non-Hunting Area
  • Nong Saeng District, Udon Thani
  • Nong Ya Plong District, Phetchaburi
  • Op Khan National Park
  • Pachee River Wildlife Sanctuary
  • Pai District, Mae Hong Son
  • Pak Thale
  • Pang Sida National Park
  • Pha Daeng National Park
  • Pha Nam Yoi Forest Park
  • Phu Chong Na Yoi National Park
  • Phu Foi Lom National Park
  • Phu Hin Rong Kla National Park
  • Phu Khiao Wildlife Sanctuary
  • Phu Kradueng National Park
  • Phu Luang Wildlife Sanctuary
  • Phu Phan National Park
  • Phu Soi Dao National Park
  • Phu Suan Sai National Park
  • Phu Wiang National Park
  • Pran Buri District, Prachuap Khiri Khan
  • Pran Buri Forest Park
  • Sai Yok District, Kanchanaburi
  • Sai Yok National Park
  • Sakaerat Environmental Research Station
  • Salak Pra Wildlife Sanctuary
  • San Kala Khiri National Park
  • San Sai District, Chiang Mai
  • Sirinat National Park
  • Sri Nakarin Dam National Park
  • Sri Phang-nga National Park
  • Taksin Maharat National Park
  • Tarutao National Marine Park
  • Tat Mok National Park
  • Tham Sakoen National Park
  • Thap Lan National Park
  • Thung Salaeng Luang National Park
  • Thung Yai Naresuan Wildlife Sanctuary
  • Umphang Wildlife Sanctuary
  • Wat Tham Erawan Non-Hunting Area
  • Wiang Kaen District, Chiang Rai
Range map of Dicrurus aeneus in Thailand