How to Identify Purple-throated Carib Feathers
A guide to the emerald body feathers and violet throat patch of the Purple-throated Carib hummingbird, and how to tell it apart from other Lesser Antilles hummingbirds.
Read the full Purple-throated Carib encyclopedia entry →
What Purple-throated Carib's Feathers Look Like
This large Caribbean hummingbird has some of the most vividly colored feathers of any bird in its range:
- Throat (gorget) feathers: brilliant iridescent violet-purple, flashing almost black when not catching direct light — the bird's defining field mark and the most identifiable single feather type if found.
- Body/back feathers: rich, glossy emerald to bronze-green, dense and slightly scale-like, typical of hummingbird contour plumage.
- Belly feathers: duller green, sometimes with a grayish cast, less iridescent than the back and throat.
- Tail feathers: blackish, slightly curved, often with a faint blue-green gloss at the base; the tail is proportionately broad for a hummingbird.
- Wing (flight) feathers: dark blackish-brown, narrow, stiff, and slightly curved — built for the rapid wingbeats and hovering flight typical of hummingbirds.
- Sexual size difference: females are notably larger with a longer, more strongly decurved bill (not a feather trait), but feather color is similar between sexes, though female underparts can look a bit paler.
- Size: even the largest tail feathers rarely exceed 4–5 cm; body feathers are tiny, 1 cm or less.
Step-by-Step: Is This Feather From a Purple-throated Carib?
- Check the scale. Any feather this small (under 5 cm) and iridescent immediately narrows things to the hummingbird family.
- Look for violet-purple iridescence on a throat feather. A tiny feather that flashes deep violet-purple against a blackish base is the strongest single clue for this species among Caribbean hummingbirds.
- Examine body feathers for emerald-bronze green. Combined with a violet throat feather nearby, this supports the identification.
- Consider the tail shape. A relatively broad, blackish tail feather with a slight curve fits this species better than the very narrow, forked tails of some other hummingbirds.
- Factor in location. Because this species is essentially confined to the Lesser Antilles, a hummingbird feather found there is far more likely to belong to Purple-throated Carib than to a mainland species.
Similar Species & How to Tell Them Apart
- Green-throated Carib: Shows an emerald-green throat rather than violet-purple, making throat feather color the clearest way to separate the two where their ranges overlap.
- Antillean Crested Hummingbird: Much smaller overall, with a green crest and no violet throat patch; feathers from this species will be noticeably tinier.
- Blue-headed Hummingbird: Has a blue-violet head/crown rather than a violet throat, so the location of the purple color on the body differs.
- Ruby-throated Hummingbird (if a stray were found): Shows a red-orange gorget rather than violet-purple, and is not normally resident in the Caribbean.
Where & When You'll Find Them
Purple-throated Caribs inhabit forest edges, gardens, and flowering trees (especially Heliconia) across the Lesser Antilles, so feathers are most likely found near flowering vegetation on these islands rather than in open or arid habitats. Hummingbirds molt gradually and nearly continuously rather than in one discrete season, so single body or tail feathers can turn up nearly year-round, though slightly more often after the main breeding and flowering peaks when feather wear is highest.
Frequently asked questions
Why does the throat feather look black instead of purple sometimes?
Like many hummingbird gorget feathers, the violet color is structural (created by light-scattering feather microstructure) rather than pigment-based, so it only flashes purple at certain angles and looks dark or black otherwise.
Are male and female feathers colored differently?
Both sexes show the emerald body and violet throat, though females tend to look slightly paler below; the biggest sex difference is bill length and curvature rather than feather color.
How is this different from a Green-throated Carib feather?
The clearest distinction is the throat patch color — violet-purple in Purple-throated Carib versus emerald-green in Green-throated Carib — everything else about the two species is quite similar.
Could this feather have come from a mainland hummingbird instead?
It's unlikely, since Purple-throated Carib is essentially restricted to the Lesser Antilles; a similar-looking feather found outside that island range would need to be reconsidered against local hummingbird species instead.