Crescent-chested Puffbird
Open Bird Bucket List ↗
Quick Facts
- Scientific Name: Malacoptila striata
- Spanish Name: Buco pechilunar
- Family: Bucconidae
- Known Nicknames: Crescent-chested Puffbird, Striated Puffbird
- Average Length: 18–20 cm / 7–8 in
- Average Weight: 40–50 g / 1.4–1.8 oz
- Wingspan: N/A
- Key Feature: White crescent-shaped band across the chest
- Primary Diet: Insectivore
- Range: Southeastern Brazil (coastal Atlantic Forest)
- Habitat: Humid lowland and montane Atlantic Forest understory
- Social Structure: Solitary or in pairs
- Nesting/Breeding: Burrow in earth bank or termite mound
- Conservation Status: Least Concern (LC)
- Population Trend: Decreasing
The Crescent-chested Puffbird (*Malacoptila striata*) is a captivating, plump-bodied bird endemic to the Atlantic Forest of eastern Brazil, easily recognized by its namesake feature: a bold, white crescent-shaped band that starkly contrasts against its rich, dark brown chest. Its general appearance is typical of puffbirds—a stout, large-headed silhouette with a thick, slightly hooked black bill and a short, squared tail. Unique among its relatives, this species exhibits a finely streaked, grayish-brown crown and nape, while its underparts are a warm buffy white, heavily marked with dark brown streaks that blend into the distinctive chest crescent. A special feature is its cryptic, sedentary nature; it often sits motionless for long periods on an exposed perch, relying on its excellent camouflage and a surprising agility to sally out and snatch large insects, spiders, and even small lizards mid-flight, making it a master of patience in the understory gloom.
Fun Facts
Despite its name, the crescent chest is often barely visible on this stocky, brown bird, but the true spectacle is its bizarre nesting behavior: it digs a tunnel up to a meter long into a termite mound, raising its chicks inside the fortress while the termites simply wall off the intrusion and continue their business around them. It also has a comically lethargic hunting style, sitting motionless for long periods on a low perch before suddenly lunging to snatch a large insect or lizard, then returning to its spot to bash the prey against a branch before swallowing. Unique among puffbirds, it is known to occasionally follow army ant swarms, not to eat the ants, but to snap up the insects and small vertebrates fleeing the chaos.
Habitats & Distribution
The Crescent-chested Puffbird is endemic to the Atlantic Forest of eastern Brazil, with its range extending from the state of Bahia southward to Santa Catarina and Rio Grande do Sul. It inhabits the interior and edges of humid lowland and montane forests, often in areas with dense understory vegetation, but it also occurs in secondary growth forests and forest fragments. Its distribution is largely restricted to the well-preserved remnants of this biome, where it favors shaded, mature forest habitats with a high canopy and ample deadwood for perching.
Behaviours & Reproduction
The Crescent-chested Puffbird is generally solitary or found in pairs, defending a small territory within the forest understory. Its breeding behavior is not extensively documented, but it is believed to be monogamous, with both partners participating in excavating a nest cavity in a decaying tree trunk or arboreal termite mound. The female typically lays two to three white eggs, and both parents share incubation duties and feed the chicks by regurgitating captured insects and small vertebrates. A unique reproductive strategy involves the use of active termitaria, where the birds dig a tunnel into the hard outer shell, providing a stable, predator-resistant nursery. The young fledge after about three weeks, but may remain with the parents for a short period before dispersing.
Diet
The Crescent-chested Puffbird is an insectivore and carnivore, with a diet dominated by large arthropods such as beetles, cicadas, grasshoppers, caterpillars, and spiders. It is an adept sit-and-wait predator, perching motionless on a low branch before making a swift, direct flight to snatch prey from foliage or the ground. A particularly interesting aspect of its feeding behavior is its frequent consumption of small vertebrates, including lizards, frogs, and even tiny snakes, which it subdues by beating them against a branch. Unlike many birds, it does not typically pursue flying insects on the wing, instead focusing on stationary or slow-moving prey; it also occasionally supplements its diet with small fruits and berries, though animal matter makes up the vast majority of its intake.
Colors
The Crescent-chested Puffbird is predominantly brown with heavy, dark streaking on its white underparts, forming a distinctive, dark crescent-shaped band across its chest. Its upperparts are mottled brown and rufous, with a pale buffy throat and a whitish supercilium. This cryptic coloration provides excellent camouflage against tree bark and leaf litter in its forest habitat.
Distribution Map
Places linked to this species. A sighting is never guaranteed.
Use the map filter to show only featured places.
Featured places
Tours where this species is featured
