
- Who
- Malleefowl (Leipoa ocellata)
- What
- 300 tonne(s)/metric ton(s)
- Where
- Australia ()
- When
- 2011
Australia's malleefowl (Leipoa ocellata) builds the largest incubation mounds, weighing in at 300 tonnes (661,000 lb) - as heavy as the average 747 jumbo jet plane!