Carib Grackle

Overview

The Carib Grackle is a compact member of the grackle group found through the Lesser Antilles, Trinidad and Tobago, and parts of northern South America. It thrives around human settlements, feeding boldly in parks, gardens, and open agricultural land.

Males and females share a similar glossy black plumage, though males are noticeably larger and show a deeper keel to the tail. The species is highly adaptable and often seen in loose, chattering flocks.

Feather Identification

• Body feathers: Solid black with a glossy purple-blue sheen visible in good light
• Tail feathers: Longer and more keeled (folded into a shallow V in flight) in males than females
• Shaft color: Dark, blending with the vane
• Size: Smaller and slimmer than Great-tailed or Boat-tailed Grackle feathers, with a less pronounced keel
• Similar species: Told from cowbirds by longer tail feathers and glossier sheen; smaller overall than mainland grackle species

Plumage Details

Adult males are uniformly glossy black with iridescent purple and blue highlights on the head and back. Females are smaller, duller, and browner overall, lacking the strong iridescence. Juveniles resemble females but show a sootier, less glossy plumage until their first molt. There is no distinct seasonal plumage change; the sexes are separable mainly by size and gloss year-round.

Habitat & Range

Carib Grackles are found in the Lesser Antilles, Trinidad and Tobago, and coastal northern South America, including Venezuela and the Guianas. They favor open and semi-open habitats: towns, gardens, farmland, mangroves, and coastal scrub. The species is largely non-migratory, remaining resident within its range year-round.

Behavior & Field Notes

Carib Grackles are bold, gregarious birds often seen foraging on the ground in small flocks or perched conspicuously on wires and rooftops. Their diet is varied, including insects, small invertebrates, fruit, and scraps found around human habitation. Nests are cup-shaped and built in trees or shrubs, often in loose colonies. Their calls include harsh chattering notes and a variety of squeaky whistles used in social interactions.