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Photo: © Juan José Chalco Luna eBird S48382327 Macaulay Library ML 114152581
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Undulated Tinamou

Crypturellus undulatus
Tinamú Ondulado
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Song

Undulated Tinamou

Appearance:  The Undulated Tinamou is a medium-sized bird with a distinctive appearance. It has a mottled or undulated pattern on its plumage, which helps it blend in with the forest floor. The bird has a reddish-brown or chestnut-colored back with black spots, a buff-colored belly, and a barred tail. Its legs are sturdy and well-adapted for walking and running on the forest floor. Whitish throat.
Habitat: The Undulated Tinamou is typically found in the dense undergrowth of lowland tropical rainforests, humid forests, and secondary growth forests. It prefers areas with thick vegetation and moderate understory cover, where it can forage for fruits, seeds, and insects while remaining hidden from predators. 
Behavior: These tinamous are primarily ground-dwelling birds that are shy and elusive, often relying on camouflage to avoid detection. They are known for their secretive nature and are more often heard than seen due to their cryptic plumage and cautious behavior. Undulated Tinamous are skilled at moving quietly through the forest undergrowth. 
Breeding: The breeding behavior of Undulated Tinamous involves the construction of shallow ground nests hidden among the dense vegetation on the forest floor. The female lays a clutch of eggs, usually ranging from 2 to 4 eggs, and both parents share the responsibility of incubating the eggs and caring for the young chicks once they hatch. 
Conservation Status: The Undulated Tinamou is classified as a species of least concern on the IUCN Red List, indicating that it is not currently considered threatened with extinction.

Distribution

The Undulated Tinamou is typically distributed in various regions across the country, primarily in the western and northern parts.Specifically, this species can be found in regions such as the Sierra Nevada de Santa Marta, the Chocó biogeographic region, the Amazon rainforest, and parts of the Andes mountains. These areas provide suitable habitats for the Undulated Tinamou, consisting of humid and dense forests, both primary and secondary forests, as well as forest edges and clearings where they feed on seeds, fruits, insects, and small invertebrates.

Taxonomy

The Undulated Tinamou (Crypturellus undulates)
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Aves (Birds)
  • Order: Tinamiformes
  • Family: Tinamidae
  • Genus: Crypturellus 
  • Species: Crypturellus undulatus

Vocalization

Whistled Calls: Tinamous, including the Undulated Tinamou, are known to produce melodious whistled calls. These whistles can vary in pitch, duration, and frequency, and are used for purposes such as mate attraction, territorial defense, and maintaining contact with group members.
Boom Calls: Some tinamou species are known to produce low-frequency, resonant calls known as "booms." These calls are particularly well-suited for communication in dense forest environments, where visual communication may be limited.
Churring Calls: Tinamous may produce churring or trilling calls, characterized by rapid and repetitive notes. These calls are often associated with courtship displays, territorial behavior, or as a means of conveying excitement or agitation.
Alarm Calls: Like other tinamous, the Undulated Tinamou likely produces sharp and distinctive alarm calls to alert others of potential threats or predators in the vicinity. These calls can vary in intensity and serve as an important warning signal to other individuals in the area.
Contact Calls: Tinamous may use soft, gentle contact calls to stay in touch with group members while foraging or moving through their habitat. These calls help maintain group cohesion and aid in navigation in dense vegetation.