Birds diurnal

Plain-bellied Emerald

Chrysuronia leucogaster

A shimmering jewel of the coastal tropics, the Plain-bellied Emerald is easily recognized by its snowy white underside and feisty personality. Watch as this iridescent wonder transforms your garden into a high-speed aerial arena.

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Quick Identification

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Size

Length: 9–10 cm (3.5–4 in); Weight: 4–4.5 g (0.14–0.16 oz)

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Colors

Metallic golden-green or bronze-green upperparts; brilliant, pure white throat and underparts; dark bronzy-green tail; bill is black with a pinkish-red base on the lower mandible.

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Key Features

Solid, pure white belly and throat
Glistening golden-green crown and back
Straight bill with a pinkish base
Slightly notched bronzy-green tail

When You’ll See Them

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Activity pattern diurnal

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Peak hours 6:00-9:00 AM and 3:30-6:00 PM

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Season Year-round; sightings often peak during the local dry season when flowers are in full bloom.

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Diet Primarily nectar from native flowering shrubs and trees; also catches small insects and spiders mid-air or from foliage for protein.

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Habitat Mangroves, coastal forest edges, scrubland, and suburban gardens or plantations.

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Behavior

The Plain-bellied Emerald is an incredibly energetic and spirited hummingbird, often acting as the "boss" of the garden. Unlike many shy forest species, this emerald is quite bold and highly territorial. It spends much of its day patrolling a fixed route of flowering plants—a behavior known as 'trap-lining'—but it will fiercely defend a particularly rich nectar source from other hummingbirds and even large butterflies.

In your backyard, you’ll notice them for their erratic, darting flight patterns and their tendency to hover momentarily before zipping away at high speeds. They are solitary creatures, coming together only briefly for mating. When not feeding, they often find a high, exposed twig to perch on, where they preen their iridescent feathers and keep a watchful eye out for intruders or passing insects.

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Camera Tips

To get the best shots of a Plain-bellied Emerald, placement is everything. Position your camera within 3 feet of a hummingbird feeder or a cluster of tubular flowers like Hibiscus or Ixora. These birds are small and move fast, so you need to minimize the distance to capture detail. Aim for a side-on angle to catch the contrast between the iridescent green back and the snowy white belly, which is their most defining feature. If possible, set your camera at a height of 4 to 5 feet, as they prefer to feed at mid-level shrub height.

Lighting is your best friend when dealing with iridescent feathers. Try to place your camera so the sun is behind you, illuminating the bird directly. This prevents the 'black silhouette' effect and allows the AI to pick up the golden-green shimmer on the crown. Avoid areas with heavy swaying foliage in the background, as the constant movement can trigger the camera unnecessarily, draining the battery and filling your storage with 'false positives' before the bird even arrives.

Because hummingbirds are incredibly fast, your camera settings need to be optimized for motion. Use a 'High' sensitivity setting for the PIR sensor and, if your hardware allows it, set the shutter speed to at least 1/1000s to freeze the wings. If you are recording video, 60fps is highly recommended; this allows you to play back the footage in slow motion, revealing the incredible wing mechanics that are invisible to the naked eye. Using a 'Pre-trigger' or 'Burst' mode is essential so you don't miss the bird as it enters and exits the frame in a split second.

Similar Species

Species that look similar or are commonly confused with Plain-bellied Emerald.

Versicolored Emerald

Features green spotting on the throat and a less consistently white belly compared to the solid white of the Plain-bellied.

Glittering-throated Emerald

Has a white line down the center of the belly rather than the entire underparts being white.

Frequently Asked Questions

They are most active during the early morning hours just after sunrise and again in the late afternoon before dusk, when nectar levels in flowers are typically highest.

Plant native red or orange tubular flowers and hang a hummingbird feeder filled with a 4:1 water-to-sugar solution. Ensure there are nearby perches where they can rest between feedings.

They primarily consume nectar for energy but also hunt for tiny spiders and gnats to get the protein and minerals they need to survive.

Yes, they are highly adaptable and are frequently seen in parks, urban gardens, and coastal suburbs throughout their range in Brazil and the Guianas.

Look for the solid, pure white throat and belly paired with a straight bill that has a reddish-pink base on the lower half. Other similar emeralds usually have green spotting on the belly.

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