Fauna
Insect

Common Crow

Euploea core

Also known as Common Indian Crow, Australian Crow, Oleander Butterfly

Common crows display velvety deep brown wings lined with crisp white marginal spots and flutter with a slow, unhurried flight pattern. Their bodies sequester plant toxins during the caterpillar stage, rendering adults unpalatable to birds and allowing them to glide openly in bright sunlight. Females lay ribbed eggs on poisonous host plants like oleander and milkweeds, ensuring the next generation inherits the same chemical defenses.

PollinatorPoisonousMigratory
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyFlower Nectar, Plant Sap, Mineral Salts
Predators
  • Praying Mantises
  • Spiders
  • Lizards
ThreatsInsecticide application, urban development, and loss of native host plants.
HabitatsGardens, forest edges, parks, and coastal scrub zones.
Life span4–6 weeks as adults
  1. OrderLepidoptera
  2. FamilyNymphalidae
  3. GenusEuploea
  4. SpeciesEuploea core
Range data is not available yet.
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
  • Observing: Look for adults gliding lazily around flowering gardens or perching on shrub leaves.
  • Gardening: Plant milkweed, oleander, or fig species to attract egg-laying females.
  • Handling: Avoid touching adult wings as rubbing off scales can impair their flight.
Keep collecting in Fauna

Found in Collections

Ecosystem chain Pro

Mystic Meadows

Common Crow is found in this collection. Identify it in Fauna to fill this slot and continue your progress.

Unlock to track progress

Continue in the app
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…