Fauna
Bird

Crimson Sunbird

Aethopyga siparaja

Also known as Yellow-backed Sunbird

Crimson sunbirds are energetic, brilliantly colored birds that bring Asian tropical forests to life with their iridescent plumage and rapid flight. Males showcase a brilliant crimson back and breast, a metallic blue-green crown, and a long curved bill adapted for probing flowers. Females display an understated olive-green plumage that provides essential camouflage while nesting in dense foliage.

NectarivoreBrilliant ColorsTropical Bird
Crimson Sunbird reference1 / 7
(c) Samuel Lee, some rights reserved (CC BY) · cc-by
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preyFlower nectar, Small insects, Spiders
Predators
  • Domestic cats
  • Tree snakes
  • Small raptors
ThreatsHabitat loss, deforestation
HabitatsTropical forests, mangroves, gardens, forest edges
Life span4–6 years
Classification
  1. FamilyNectariniidae
  2. SpeciesAethopyga siparaja
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Patience: Stand quietly near nectar-rich shrubs like hibiscus.
  • Binoculars: Focus on the mid-canopy where they actively forage.
  • Listening: Track their sharp, rapid calls through dense foliage.
Related species
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