Species Profile
Chestnut Munia
Lonchura atricapilla
Quick Facts
Conservation
LCLeast ConcernLifespan
5–7 years
Length
10–11 cm
Weight
10–14 g
Wingspan
14–16 cm
Migration
Resident
Also known as: Black-headed Munia, Tricolored Munia, Java Sparrow
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Appearance
The Chestnut Munia is a small, stocky finch with a distinctive appearance. Its head is glossy black, contrasting sharply with a rich chestnut-brown body and wings. The rump and tail are a darker brown, while the belly and undertail coverts are white, creating a striking tricolour effect.
Both males and females share this colouration, making them difficult to distinguish visually. Juveniles have duller plumage, lacking the black head and showing an overall pale brown colouration until they moult into adult plumage.
Identification & Characteristics
Colors
- Primary
- Brown
- Secondary
- Chestnut
- Beak
- Grey
- Legs
- Grey
Markings
Black head and upper breast
Tail: Short and square
Attributes
Understanding Attributes
Rated 0–100 based on research and observation. A score of 50 is average across all bird species. These attributes are relative and don't necessarily indicate superiority.
Habitat & Distribution
Chestnut Munias inhabit many open habitats across South and Southeast Asia, including India, Bangladesh, southern China, and Indonesia. They thrive in grasslands, scrublands, and agricultural areas, particularly rice paddies and other grain fields.
They have been introduced to Hawaii, where they have established populations on several islands. In their native range, they are year-round residents, showing little seasonal movement.
Distribution
Diet
The Chestnut Munia primarily feeds on small seeds from grasses and cultivated grains. It shows a particular fondness for rice, millet, and other cereal crops.
During the breeding season, it supplements its diet with small insects and spiders, providing additional protein for growing chicks.
Behaviour
Chestnut Munias are highly social birds, often seen in flocks of 10 to 30 individuals, sometimes mixing with other Munia species. They have a distinctive bouncy flight pattern, alternating between rapid wing beats and brief glides.
They move through grass stems with agility when foraging, using their strong beaks to extract seeds.
Calls & Sounds
Chestnut Munias have a variety of soft, musical calls. Their most common vocalisation is a gentle 'chit-chit-chit' or 'tee-tee-tee' often heard as they forage or fly.
During courtship, males produce a more elaborate song, a series of warbling notes that sound like 'chee-wee-chee-wee-chee'.
Nesting & Breeding
The breeding season for Chestnut Munias varies by region but often coincides with the local rainy season. During courtship, pairs form strong bonds and engage in mutual preening and soft vocalisations.
Nests are large, domed structures of woven grass, typically placed in dense vegetation or tall grass. The female lays 4-6 small white eggs in a clutch.
Both parents share incubation duties for about 14 days. After hatching, chicks remain in the nest for approximately 21 days before fledging. Parents continue to feed and care for the young for several weeks after they leave the nest.
Conservation
While the Chestnut Munia is listed as Least Concern by the IUCN, it faces localised threats from habitat loss due to agricultural intensification and urbanisation.
In some areas, trapping for the pet trade has impacted populations, prompting calls for better regulation and monitoring of wild bird capture.
Elevation
Up to 1,500 meters
Additional Details
- Egg size:
- 1.5cm x 1.1cm
- Predators:
- Main predators include small raptors such as sparrowhawks, domestic cats, and various snakes that can access their nests.
- Alarm calls:
- Sharp chirp
- Breeding age:
- 1
- Maturity age:
- 1
- Feeding times:
- Morning and late afternoon
- Major threats:
- Habitat degradation
- Parental care:
- Both parents incubate and feed the young
- Primary calls:
- Soft, high-pitched whistle
- Social habits:
- Flocks, often mixed with other species
- Egg appearance:
- White
- Feeding habits:
- Forages in grasses and on the ground
- Breeding season:
- Varies with location
- Diet variations:
- None
- Fledging period:
- 21 days
- Average lifespan:
- 3
- Call description:
- Series of soft, high-pitched whistles
- Daily activities:
- Active during the day
- Nesting location:
- Grasslands, bushes, trees
- Incubation period:
- 13-14 days
- Nest construction:
- Woven grasses into a ball-shaped nest
- Migration patterns:
- None
- Migratory patterns:
- Resident
- Age related changes:
- None
- Prey capture method:
- Picks seeds off stems or from ground
- Conservation efforts:
- None specific, but occurs in many protected areas
- Territorial behavior:
- Not territorial
- Reproductive behavior:
- Monogamous
- Special dietary needs:
- None
- Clutch characteristics:
- 4-7 eggs
- Interaction with other species:
- Congenial, mixes with other species
Birdwatching Tips
- Look for flocks in open grasslands, rice paddies, and agricultural areas
- Listen for their soft, musical chirping calls as they forage
- Observe their behavior near seeding grasses or cultivated grains
- Check for nests in dense vegetation or tall grasses
Did You Know?
- Chestnut Munias are sometimes called 'tricoloured munias' due to their distinctive black, chestnut, and white plumage.
- They are popular in the pet trade for their gentle nature and melodious calls.
- In some parts of their range, they are considered agricultural pests due to their fondness for rice crops.
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