The largest bird's nest was built by a pair of bald eagles Haliaeetus leucocephalus , and possibly their successors, near St Petersburg, Florida, USA and measured 2.
It was examined in and was estimated to weigh more than two tonnes 4, lb. The incubation mounds built by the mallee fowl Leipoa ocellata of Australia measure up to 4. The golden eagle Aquila chrysaetos also constructs huge nests, and one 4.
Most rings placed on a target by a parrot - Guinness World Records
Largest bird's nest. Who Haliaeetus leucocephalus. What 2.