Scarlet-thighed Dacnis vs Blue Dacnis

In short

The Scarlet-thighed Dacnis and Blue Dacnis are both small, vibrant tanagers, but the Scarlet-thighed Dacnis is distinguished by its scarlet thighs in males, which are absent in the Blue Dacnis. Both species have bright blue plumage, but the Blue Dacnis lacks this distinctive red feature.

Identification tips

• Look for scarlet thighs in males to confirm Scarlet-thighed Dacnis.
• Observe the intensity of blue; Scarlet-thighed Dacnis males are often a deeper blue.
• Consider habitat and range; Blue Dacnis is more widespread.
• Note behavior; Blue Dacnis may show more acrobatic foraging.

Size

Both species are similar in size, being small and compact tanagers.

Plumage

Male Scarlet-thighed Dacnis has striking scarlet thighs and a more intense blue on the body compared to the Blue Dacnis. Females of both species are less vibrant, with more greenish tones, making them harder to distinguish.

Behaviour

Both species forage for nectar and insects, often in mixed-species flocks. The Blue Dacnis is noted for its acrobatic foraging behavior, particularly when inspecting leaf damage for insects.

Habitat

Both species are found in similar habitats, such as forest edges and clearings, but the Blue Dacnis is more widespread and can be found in a broader range of forested environments.

Voice

Vocalizations are not a primary distinguishing feature between these two species, as their calls are similar and not well-documented for differentiation.