Sapphire-bellied Hummingbird

Quick Facts

Endemic
  • Scientific Name: Lepidopyga lilliae
  • Spanish Name: Colibrí ventrizafiro
  • Family: Trochilidae
  • Known Nicknames: Sapphire-bellied Hummingbird
  • Average Length: 9–10 cm / 3.5–3.9 in
  • Average Weight: 4–5 g / 0.14–0.18 oz
  • Wingspan: N/A
  • Key Feature: Iridescent sapphire-blue belly and throat contrasting with green upperparts
  • Primary Diet: Nectarivore (feeds on flower nectar) and occasional small arthropods
  • Range: Northern Colombia (Magdalena Valley and Caribbean lowlands)
  • Habitat: Tropical dry forests, scrublands, and mangroves
  • Social Structure: Solitary (except during breeding)
  • Nesting/Breeding: Small cup-shaped nest built on tree branches
  • Conservation Status: Endangered (EN)
  • Population Trend: Decreasing

The Sapphire-bellied Hummingbird (*Lepidopyga lilliae*) is a dazzling jewel of Colombia’s coastal lowlands, named for its most striking feature: a brilliant, iridescent sapphire-blue belly that gleams like polished metal against the sun. This small, slender bird measures about 9–10 cm in length, with a slightly curved black bill and a forked, dark tail. Males boast a glittering green crown and throat that transitions into the namesake blue underparts, while females are duller with a white belly and green spots. A special feature of this species is its extreme rarity—it is critically endangered, restricted to a tiny range of mangrove and dry forest fragments, where it feeds on nectar from flowers like *Erythrina* and *Heliconia*, hovering with rapid wingbeats and an iridescent flash that makes it a living gem of the neotropics.

Fun Facts

The Sapphire-bellied Hummingbird, found only in a tiny sliver of Colombia’s mangrove swamps, is a master of aerial combat, often seen chasing much larger birds like hawks and kingfishers away from its feeding territory. Its iridescent sapphire belly is not just for show; the feather structure reflects light differently depending on the angle, allowing it to flash a warning signal to rivals or dazzle a mate. Despite its delicate appearance, this hummingbird has a surprisingly loud, metallic “tik-tik” call that cuts through the coastal noise. It also has a specialized, slightly curved bill perfectly evolved to sip nectar from the tubular flowers of the *Brownea* tree, a plant that blooms only during the rainy season, forcing the bird to time its breeding cycle with remarkable precision.

Habitats & Distribution

The Sapphire-bellied Hummingbird is endemic to a very narrow strip of lowland habitats along the Caribbean coast of Colombia. Its distribution is primarily restricted to the departments of Atlántico, Bolívar, and Magdalena, where it inhabits arid and semi-arid zones. The species is strongly associated with mangrove forests, particularly along coastal lagoons and estuaries, as well as adjacent dry scrublands and gallery forests. It is rarely found far from water, relying on the nectar of flowering trees and shrubs typical of these coastal ecosystems, such as those in the genera *Erythrina* and *Capparis*. Its range is extremely limited and fragmented, with most records coming from the Ciénaga Grande de Santa Marta and the Isla de Salamanca area, making it one of the most range-restricted hummingbird species in South America.

Behaviours & Reproduction

The Sapphire-bellied Hummingbird is solitary and highly territorial, with males defending feeding areas that contain preferred nectar sources. Males court females through aerial displays, including steep dives and U-shaped flight patterns, while producing mechanical sounds with their wing feathers. After mating, the male takes no part in nesting or parental care. The female builds a small cup-shaped nest from plant fibers and spider silk, often on a horizontal branch, where she lays two white eggs. Incubation lasts about 15–19 days, and the female alone feeds the chicks with regurgitated nectar and small arthropods. A unique reproductive strategy involves the female’s ability to delay egg-laying during periods of resource scarcity, such as drought, to synchronize hatching with peak flower availability. Chicks fledge after 20–26 days, but may remain near the female for a short period before dispersing to establish their own territories.

Diet

The Sapphire-bellied Hummingbird is a specialized nectarivore, relying almost exclusively on the energy-rich floral nectar of a limited range of flowering plants, particularly those with long, tubular corollas like certain species of *Heliconia* and *Inga*. To meet its extreme metabolic demands, it must visit hundreds of flowers daily, using its long, extendable tongue to lap up nectar at a rapid rate. Unlike many hummingbirds that supplement their diet with small insects and spiders for protein, this species is believed to be almost entirely dependent on nectar, a trait that makes it exceptionally vulnerable to habitat fragmentation and the loss of its specific food plants. Interestingly, because of this narrow dietary specialization, the bird likely plays a crucial role as a dedicated pollinator for the few plant species it feeds from, creating a tightly co-evolved ecological relationship.

Colors

The male Sapphire-bellied Hummingbird has a brilliant turquoise-blue belly that contrasts sharply with an iridescent green back, head, and throat, while the female is duller with a pale gray underside and green upperparts, lacking the vibrant belly. Its deeply forked, bluish-black tail and a small white postocular spot are key markings; the species shows no camouflage adaptations, as its metallic colors are for display rather than concealment.