Orange-throated Tanager

Wetmorethraupis sterrhopteron

Order: Passeriformes / Family: Thraupidae

Wikimedia Commons

orange blue black medium songbird forest tropical rare endangered year-round

About the Orange-throated Tanager

The Orange-throated Tanager, scientifically known as Wetmorethraupis sterrhopteron, is a vibrant member of the Thraupidae family that captivates bird enthusiasts with its striking coloration and dynamic presence. This tanager is endemic to the humid lowland forests of northwestern Peru and extreme southern Ecuador. Its range is quite limited, making it a species of significant interest to ornithologists and conservationists alike. The forests it inhabits are part of the Tumbes-Chocó-Magdalena biodiversity hotspot, a region known for its exceptional number of endemic species and critical conservation value.

The ecological role of the Orange-throated Tanager is multifaceted. As a frugivore, it plays a crucial role in seed dispersal, aiding in the regeneration of its native forest habitat. This role is particularly important in the fragmented forests where the species is found. The tanager's diet also includes insects, contributing to the control of insect populations within its ecosystem. During the rainy season, when fruits are plentiful, the Orange-throated Tanager becomes more active, moving in mixed-species flocks, which are a common feature of its behavior in this period. These flocks increase foraging efficiency and provide protection against predators.

The conservation significance of the Orange-throated Tanager cannot be overstated. The species is currently listed as Near Threatened on the IUCN Red List due to habitat loss and fragmentation. The primary threat to its habitat is deforestation caused by agricultural expansion and logging. Efforts to conserve its habitat are crucial for the survival of this distinct species, and it serves as an indicator of the health of its forest ecosystem. Conservation initiatives focused on preserving the remaining tracts of humid lowland forest in its range are vital for maintaining biodiversity in this region.

The Orange-throated Tanager belongs to the family Thraupidae, within the order Passeriformes. These birds typically live average 6-8 years with a maximum recorded of 10 years.

How to Identify a Orange-throated Tanager

The Orange-throated Tanager is a medium-sized bird measuring around 18 cm in length. Its most distinguishing feature is the vivid orange throat, which contrasts sharply with the deep blue of its body plumage. The wings and tail are also blue, with a slight iridescence that can be seen when the bird moves in sunlight. The head is a striking black, providing another contrast that helps in identification. Males and females appear similar, though females may exhibit slightly duller tones. Juveniles resemble adults but with more subdued colors, especially in the orange throat patch.

Confusion with other species is unlikely due to the unique combination of colors and the limited range of the Orange-throated Tanager. However, it may be confused with other tanagers in the region that possess blue or orange features, such as the Blue-and-yellow Tanager. In flight, the Orange-throated Tanager maintains a slightly rounded wing shape and a steady, direct flight pattern. When perched, it often adopts an upright posture, showcasing its colorful throat prominently.

The Orange-throated Tanager's perching behavior is typical of forest tanagers. It moves deliberately through the mid to upper canopy, often pausing to pick insects or fruits. Its vibrant coloration and active movements make it a thrilling sight for bird watchers.

Having trouble telling birds apart? Upload a photo to our bird identification tool for an instant species match.

Orange-throated Tanager Habitat and Range

Preferred Habitat

The Orange-throated Tanager inhabits the humid lowland forests of northwestern Peru and southern Ecuador. It thrives in dense, primary forests where it can forage in the safety of the canopy. The elevation range for this species typically extends from 200 to 1,200 meters above sea level. Within this range, it prefers undisturbed, mature forest environments that provide ample food resources and nesting sites.

While primarily a forest dweller, the Orange-throated Tanager occasionally ventures into secondary forests if these areas offer sufficient cover and food. There are no significant seasonal habitat shifts observed in this species, as it tends to remain within its preferred forest habitats year-round. Unlike some tanagers, it does not adapt well to urban or suburban settings, relying instead on the intricate ecosystem offered by its native forests.

The species’ reliance on specific forest types highlights the importance of conservation efforts aimed at protecting these habitats. The preservation of the forest is crucial not only for the tanager itself but also for the myriad other species that share its environment.

Geographic Range

The range of the Orange-throated Tanager is quite restricted, confined primarily to the Tumbes-Chocó-Magdalena region in northwestern Peru and extending slightly into southern Ecuador. This limited distribution makes it an endemic species with specific habitat requirements. The tanager does not migrate, maintaining a consistent presence in its range throughout the year.

Within its range, the Orange-throated Tanager is found in areas of humid lowland forest, with occasional sightings in adjacent secondary forests. Population density hotspots are typically located in regions where the forest remains intact and undisturbed, particularly in protected areas or reserves.

Due to its restricted range, the Orange-throated Tanager is vulnerable to habitat fragmentation and loss. Conservation efforts in its range focus on protecting existing forest tracts and restoring degraded areas to ensure the long-term survival of the species. The creation of wildlife corridors between forest patches can also aid in maintaining a viable population.

Want to know which birds visit your area? Browse our backyard birds by location guides for region-specific species lists.

What Does the Orange-throated Tanager Eat?

The diet of the Orange-throated Tanager consists primarily of fruits and insects, reflecting its role as both a frugivore and insectivore. It shows a preference for various berries and small fruits, which it forages from the mid to upper canopy levels of the forest. During the wet season, when fruit abundance peaks, the tanager's diet is predominantly fruit-based.

Insects form a significant part of the diet, especially during the dry season when fruit availability may decrease. The tanager employs a variety of foraging techniques, including gleaning insects from leaves and bark and catching prey mid-flight. Its agile movements and keen eyesight aid in locating and capturing insects, which are typically small to medium-sized.

Feeding usually occurs in the morning and late afternoon, coinciding with periods of increased insect activity and fruit availability. By dispersing seeds and controlling insect populations, the Orange-throated Tanager contributes significantly to the ecological balance of its habitat.

Orange-throated Tanager Behavior and Social Structure

The Orange-throated Tanager exhibits a range of intriguing behaviors that highlight its adaptability and social nature. It is primarily a social bird, often seen in pairs or small groups, and during certain seasons, it joins mixed-species flocks that forage together for mutual benefit. This behavior not only enhances foraging efficiency but also provides safety in numbers against predators.

Territoriality is moderate in this species, with pairs or small groups defending specific feeding areas during the breeding season. Courtship displays are subtle, often involving mutual feeding between mates and synchronized movements through the foliage. Vocalizations play a role in pair bonding and territory establishment, with both sexes participating in song.

The Orange-throated Tanager's daily activity pattern includes active foraging during cooler morning and late afternoon hours, with periods of rest during the hottest part of the day. In response to predators, the tanager relies on its agility and speed, often retreating to dense foliage for cover. Its behavior reflects its adaptation to the dynamic environment of the humid forest.

Orange-throated Tanager Nesting and Reproduction

Nesting for the Orange-throated Tanager involves constructing a cup-shaped nest, typically placed in the mid-canopy of dense forest. Both males and females participate in gathering materials, which include twigs, leaves, and fibrous plant material. The nest is carefully concealed among foliage to protect against predators.

The typical clutch size ranges from two to three eggs, which are pale with variable speckling. Incubation duties are shared between both parents and last approximately 14 to 16 days. The chicks are altricial, requiring extensive parental care. Both parents participate in feeding the chicks, bringing a diet of insects and small fruits.

Fledging occurs about 15 to 17 days after hatching, though the young remain dependent on the parents for several weeks post-fledging. The Orange-throated Tanager typically raises one to two broods per year, depending on environmental conditions and food availability. Parental roles are well-defined, with a strong emphasis on cooperative care.

Orange-throated Tanager Sounds and Vocalizations

The primary song of the Orange-throated Tanager is a melodious series of clear, flute-like notes that rise and fall in pitch. The song is both pleasant and distinctive, often used to establish territory and attract mates. Call notes include sharp, chirping sounds that serve as communication between flock members.

In addition to its song, the tanager emits alarm calls when predators are near, characterized by rapid, high-pitched notes that alert other birds to danger. During the dawn chorus, the Orange-throated Tanager's voice is a notable presence, contributing to the vibrant cacophony of the forest. Its sounds are reminiscent of other tanagers, yet the unique combination of rhythm and pitch helps in distinguishing it from other species.

Interesting Facts About the Orange-throated Tanager

1The Orange-throated Tanager is the only member of its genus, Wetmorethraupis.
2This species was named in honor of Alexander Wetmore, an influential ornithologist.
3Despite its bright colors, the Orange-throated Tanager is often hard to spot amid dense foliage.
4The species has a relatively small range, making it a highly sought-after bird for birdwatchers.
5Its melodious song can often be heard resonating through its forest habitat before the bird is seen.

Orange-throated Tanager Conservation Status

The conservation status of the Orange-throated Tanager is listed as Near Threatened by the IUCN. The primary threat to this species is habitat loss due to deforestation for agriculture and logging. The population trend is currently decreasing, with habitat fragmentation further exacerbating the situation. Conservation efforts focus on protecting remaining forest areas and promoting sustainable land use practices. Establishing protected areas and reserves within its range is crucial to preserving its habitat. Historical data indicates that the species was once more widespread, but habitat destruction has led to its current restricted distribution. Engagement with local communities in conservation initiatives is essential to address the challenges facing the Orange-throated Tanager. By fostering awareness and promoting ecotourism, conservationists hope to provide economic incentives for habitat preservation.