Aves > Procellariiformes > Procellariidae > Calonectris > Calonectris borealis
Compare AOU treatments of Calonectris borealis, in Avibase (1886 to present).
Search for Calonectris borealis at Cornell Birds of North America.
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"N" has not bred in AOU area, but occurs regularly as nonbreeding visitor |
Annotation: Formerly considered conspecific with Calonectris diomedea.