Groove-billed Ani

Identification

The groove-billed ani is a striking all-black tropical bird roughly 34 cm long, weighing 70–90 g, with a wingspan of 41–46 cm. Its most distinctive feature is an enormous, heavily curved bill adorned with prominent lengthwise grooves running along the upper mandible—the characteristic that gives this species its name. The bird's very long tail is almost as long as its body, contributing to its somewhat gangly silhouette. In flight, it displays a distinctive pattern of quick, choppy wingbeats alternating with short glides.

The groove-billed ani closely resembles its relative, the smooth-billed ani, and the two can be challenging to distinguish. Some smooth-billed ani specimens have bills as small as those of groove-billed anis and even develop grooves on the basal half of their bills. The most reliable way to tell them apart is by voice and range, as the groove-billed ani occupies a more northerly distribution.

Range & Habitat

This resident tropical species is found throughout most of its range, which extends from southern Texas, central Mexico, and The Bahamas, southward through Central America to northern Colombia and Venezuela, and along the coasts of Ecuador and Peru. The groove-billed ani only retreats from the northern limits of its range in Texas and northern Mexico during winter months, making it partially migratory at the northern edge of its distribution.

The species favours open and partly open country, thriving in pastures, savanna, and orchards where it can forage easily among low vegetation and grassland.

Behaviour & Diet

The groove-billed ani is a highly social bird, living in small family groups comprising one to five breeding pairs. These groups are remarkably cooperative, defending a shared territory and raising their young communally in a single nest. All members of the group participate in incubating eggs and caring for nestlings—a fascinating breeding strategy that reinforces the bonds within these tight-knit units.

The groove-billed ani feeds on a mixed and opportunistic diet of insects, seeds, and fruits, making it well-adapted to the varied food sources available in its open-country habitats.

Best Time & Places to See It

For travellers in southern Texas and northern Mexico, the groove-billed ani is best observed during the breeding and summer months, as the species retreats southward in winter. Throughout the rest of its range—from central Mexico through Central America to northern South America and coastal Ecuador and Peru—it is a year-round resident and can be encountered at any time of year. Look for small flocks in open pastures, savanna, and orchard habitats where the birds forage actively and visibly.

Photography Tips

The groove-billed ani's all-black plumage can be challenging to photograph in bright sunlight, as it often appears as a silhouette. Overcast conditions or early morning and late afternoon light will reveal the bird's subtle texture and sheen. The bird's large, distinctive bill and long tail should be key framing elements in your composition. Since anis are often seen in small groups moving through open country, patience will reward you with behavioural shots of feeding and social interactions. Their deliberate flight pattern—alternating between flapping and gliding—offers good opportunities for flight photography.