
The Bee Hummingbird, Mellisuga helenae, holds the title of the world's smallest bird, native to Cuba and the Isla de la Juventud. Adults measure a mere 5 to 6 centimeters (2 to 2.4 inches) in length, including the beak and tail, and weigh approximately 1.6 to 2 grams (0.056 to 0.071 ounces). Males are distinguished by their iridescent red throat and bluish upper parts during the breeding season, while females display a more subdued greenish plumage with white underparts. Both sexes exhibit the rapid wing beats characteristic of hummingbirds, enabling them to hover in place while feeding.

| Population: | Not precisely quantified; considered Near Threatened due to habitat loss and degradation |
| Generation Length: | 3-4 years |
| Average Weight: | Approximately 1.6-2 g |
| Average Length: | 5-6 cm |
| Lifespan: | Up to 7 years in the wild |
| Diet: | Primarily nectar supplemented with small invertebrates |
| Conservation Status: | Near Threatened (NT) |
Bee Hummingbirds inhabit a variety of environments, including gardens, forest edges, and mountainous regions, where they are often found visiting flowers to feed on nectar. Their diminutive size allows them to access the nectar of small flowers, playing a crucial role in pollination. In addition to nectar, they consume insects and spiders, providing essential protein and nutrients.
The diet of the Bee Hummingbird primarily consists of nectar, supplemented by small insects and spiders. This high-energy diet supports their extremely active lifestyle and rapid metabolism, necessitating frequent feeding throughout the day to maintain energy levels.
Reproduction for Bee Hummingbirds involves the construction of tiny, cup-shaped nests, where the female lays two eggs, each roughly the size of a coffee bean. The female alone incubates the eggs for about two weeks, and after hatching, she feeds the chicks for another three weeks until they are ready to fledge. The nests are often built on the underside of leaves to provide camouflage and protection from predators.
The Bee Hummingbird is currently classified as Near Threatened by the IUCN, with habitat loss and fragmentation posing significant threats to its population. Conservation efforts are focused on habitat protection and restoration, particularly in areas of native forest that are critical for the species' survival. The Bee Humingbird's unique status as the smallest bird in the world, combined with its ecological role as a pollinator, underscores the importance of conservation measures to ensure its continued survival and the health of its habitat.
Flight
Territorial during breeding season
Capable of hovering in place and flying at high speeds; specific speeds not quantified
Nectarivore
Tropical and subtropical forests, garden areas, and coastal regions
Largely sedentary, with some local movements in search of food
Endemic to Cuba and the Isla de la Juventud
Prefers warm, humid climates
Larger birds, spiders, and insects
Nectar, small insects, and spiders
Feeds on nectar from flowers using its long bill and tongue; also consumes small insects and spiders for protein
Primarily nectar supplemented with small invertebrates
Polygynous
Typically 2 eggs
About 14-19 days
The bee hummingbird is the world's smallest bird, weighing less than a penny and measuring about 2 inches.
Native to Cuba, this tiny bird can flap its wings up to 80 times per second. Despite its size, the bee hummingbird is an essential pollinator, visiting over 1,500 flowers daily. Its vibrant plumage makes it resemble a flying jewel, captivating anyone lucky enough to see it.



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