Birds diurnal

Greater Ani

Crotophaga major

Meet the 'Black Cuckoo' of the tropics—a social, iridescent marvel that thrives in the heart of South American wetlands. With its piercing white eyes and communal spirit, the Greater Ani is a masterpiece of group living.

0 Sightings

0 Habitats

Quick Identification

straighten

Size

Length: 43–48 cm (17–19 in); Weight: 140–190 g (4.9–6.7 oz)

palette

Colors

Lustrous blue-black plumage with strong iridescent greenish or violet sheen; pale white to yellowish-white eyes; black bill and legs.

visibility

Key Features

Prominent arched bill with a high ridge on the upper mandible
Strikingly pale white or yellow iris
Long, broad, and somewhat floppy tail
Highly social, often seen in noisy groups

When You’ll See Them

schedule

Activity pattern diurnal

brightness_5

Peak hours 7:00 AM – 10:00 AM and 3:30 PM – 5:30 PM

calendar_month

Season Year-round, with peak visibility and vocal activity during the rainy season (breeding season).

restaurant

Diet Large insects like grasshoppers, beetles, and caterpillars; they also consume small lizards, frogs, and occasionally berries or fruits found near riverbanks.

park

Habitat Mangrove swamps, riverine forests, marshes, and lake edges. They are almost always found near water.

bar_chart
Loading activity data...

Behavior

Greater Anis are incredibly social birds, known for their communal lifestyle that sets them apart from most other cuckoo species. They are rarely seen alone, instead moving through the canopy in tight-knit groups of two to five breeding pairs. These groups are famous for their communal nesting, where all females in the group lay their eggs in a single, large nest made of sticks and leaves, and all members share the responsibilities of incubation and chick-rearing.

Their vocalizations are a defining part of their behavior, consisting of loud, bubbling, or 'boiling' croaks that can be quite startling in the quiet of a wetland. While they are primarily arboreal, they frequently descend to lower vegetation or the ground near water to forage. They are not particularly strong fliers, often moving with a distinctive 'flap-and-glide' motion that looks somewhat clumsy due to their long, heavy tails.

photo_camera EverydayEarth exclusive

Camera Tips

Capturing the Greater Ani on a trail camera requires targeting their specific affinity for water. Place your camera near the edges of wetlands, mangroves, or slow-moving streams. These birds have a habit of 'sunning' themselves to dry their feathers or warm up in the morning, so look for exposed branches that receive the first rays of sunlight over the water. Mounting your camera 4 to 6 feet high on a tree trunk facing one of these perches is an excellent strategy.

Because the Greater Ani is deep black with a high-gloss iridescence, lighting is your biggest challenge. In direct midday sun, the camera sensor may struggle to capture detail, resulting in a 'black blob' or harsh metallic glares. Set your camera to record in the early morning or late afternoon when the light is softer; this will help reveal the stunning blue and green highlights in their feathers. If your camera has an HDR (High Dynamic Range) mode, enable it to balance the dark feathers against bright tropical backgrounds.

Since these are social birds, avoid using a tight zoom or narrow field of view. A wider angle is preferable because it allows you to capture the fascinating group dynamics, such as communal preening or the 'follow-the-leader' flight pattern they use when moving between trees. If you are using video mode, keep the trigger duration at least 20-30 seconds to capture their unique bubbling vocalizations and social interactions.

To lure them into the frame, you don't need a traditional bird feeder, as they won't eat seeds. Instead, a solar-powered water dripper or a small misting system can be irresistible to them in humid environments. The sound of moving water acts as a natural magnet, drawing the whole group down to a specific branch for a bath, providing you with high-quality, close-up footage.

Similar Species

Species that look similar or are commonly confused with Greater Ani.

Smooth-billed Ani

Smaller with dark eyes and a more uniform black plumage lacking the intense blue-green iridescence.

Groove-billed Ani

Noticeably smaller with distinct horizontal grooves on the bill and dark eyes.

Frequently Asked Questions

Greater Anis are strictly diurnal. They are most active in the early morning shortly after sunrise when they begin foraging and sunning themselves, and again in the late afternoon before they gather in communal roosts for the night.

If you live near a wetland or river in their range, you can attract Greater Anis by maintaining thick, native riverside vegetation and providing a moving water source like a pond with a fountain or a birdbath with a dripper. They are less likely to visit dry, suburban yards far from water.

Their diet is primarily composed of large invertebrates like grasshoppers, dragonflies, and spiders. They are also opportunistic predators that will take small vertebrates like frogs and lizards, and they supplement this with occasional fruits.

They are generally less common in urbanized areas compared to their cousins, the Smooth-billed Anis. Greater Anis are specialists that require proximity to water and relatively undisturbed wetland or forest-edge habitats.

The easiest way to tell them apart is the eyes: Greater Anis have distinct pale white or yellowish eyes, while Smooth-billed Anis have dark eyes. Additionally, Greater Anis are larger and have a much glossier, iridescent blue-green sheen to their feathers.

Record Greater Ani at your habitat

Connect a camera to start building your own species record — AI identifies every visitor automatically.

Join free Identify a photo