1 The. (big)
seabird is the Northern Royal Albatross.
2 One of the. (heavy)
birds of prey is the Andean Condor.
3 The ostrich has got the .
(large) eyes of any land animal.
4 The.(strong)
living bird is the North African Ostrich.
5 One of the . (unusual)
birds is the Secretary Bird. It has long legs
but it can't run.
6 The Arctic Tern is one of the. (aggressive) birds on Earth.
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