Solitary Black Cacique vs Red-rumped Cacique

In short

The Solitary Black Cacique is entirely black with a dark eye and a nearly white, chisel-like bill, while the Red-rumped Cacique has a distinctive red rump, often hidden when perched, and a blue iris. Both species are similar in size but differ in eye color and rump visibility.

Identification tips

• Eye Color: Solitary Black Cacique has a dark eye; Red-rumped Cacique has a blue iris.
• Rump Visibility: Look for the red rump of the Red-rumped Cacique, especially in flight.
• Bill Shape: Solitary Black Cacique has a long, pointed, chisel-like bill.
• Behavior: Solitary Black Cacique is often solitary, while Red-rumped Cacique may be in groups.

Size

Both species are medium-large caciques, with the Red-rumped Cacique showing slight sexual dimorphism in size.

Plumage

The Solitary Black Cacique is entirely black with a dark eye, whereas the Red-rumped Cacique is mostly black with a bright red rump and a blue iris. The red rump can be concealed by the wings when perched.

Behaviour

The Solitary Black Cacique is often found alone or in pairs, while the Red-rumped Cacique may be seen in groups.

Habitat

The Solitary Black Cacique inhabits swampy forests and areas near water, often in the understory to mid-story. The Red-rumped Cacique is found in similar habitats but is more social.

Voice

The Solitary Black Cacique has varied and unusual vocalizations, sometimes mimicking other species. The Red-rumped Cacique's vocalizations are not detailed here.