🦅 Bald eagle vs Monarch butterfly 🦋
The bald eagle is about 10 times as long as the monarch butterfly. The bald eagle is about twice as fast as the monarch butterfly. The bald eagle weighs about 9,500 times as much as the monarch butterfly.
| Row | 🦅 Bald eagle | 🦋 Monarch butterfly |
|---|---|---|
| Top speed The bald eagle is about twice as fast as the monarch butterfly. | 35 to 40 mph56 to 64 km/h1 | 9.9 to 30 mph16 to 48 km/h2 |
| Weight The bald eagle weighs about 9,500 times as much as the monarch butterfly. | 7 to 14 lb3.2 to 6.4 kg3 | 0.018 oz0.5 g4 |
| Lives The bald eagle usually lives about 300 times as long as the monarch butterfly. | 20 years20 years5 | 0.04 to 0.1 years0.04 to 0.1 years4 |
| Eats The bald eagle eats fish; the monarch butterfly eats plants. | mostly fish, plus ducks and dead animals | nectar from flowers; its caterpillars eat only milkweed |
| Lives in They live in different kinds of places, so they would hardly ever meet. | near lakes, rivers and coasts across North America | across North America, flying to Mexico and California for the winter |
Which one? Bald eagle or monarch butterfly
🏁 Who would win the race?
The bald eagle gets to the tree first. Over a short dash it is about twice as fast as the monarch butterfly.
We only race. Real animals mostly avoid each other. A race is the only fair contest: who reaches the tree first, by top speed.
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Getting the animals ready…
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The link carries only the two animals’ names: peabody.kids/animals/compare/bald-eagle-vs-monarch-butterfly
Where these numbers come from
- National Park Service, Upper Delaware, checked 30 October 2026.
- U.S. Fish and Wildlife Service, Monarch Butterfly Festival page, checked 30 October 2026.
- National Park Service, Kenai Fjords, checked 30 October 2026.
- U.S. Fish and Wildlife Service, species profile, checked 30 October 2026.
- National Park Service (North American bald eagle), checked 30 October 2026.