The Niue night heron (Nycticorax kalavikai ) is an extinct night heron species that was endemic to the island of Niue in West Polynesia.
The specific epithet comes from the Niuean words kalavi (land crab) and kai (food), alluding to speculation by the describers that land crabs constituted an important part of the species' diet.
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
Altricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
Soaring birds can maintain flight without wing flapping, using rising air currents. Many gliding birds are able to "lock" their extended wings by m...
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