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gptkbp:instance_of
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gptkb:genus
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gptkbp:bfsLayer
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5
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gptkbp:bfsParent
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gptkb:Black-capped_Petrel
gptkb:Bonin_petrel
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gptkbp:behavior
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social
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gptkbp:breeding_season
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varies by species
1 egg per breeding season
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gptkbp:color
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dark upperparts
white and gray plumage
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gptkbp:conservation_status
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varies by species
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gptkbp:diet
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zooplankton
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gptkbp:distribution
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tropical and subtropical oceans
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gptkbp:family
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gptkb:Procellariidae
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gptkbp:first_flight
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dynamic and graceful
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gptkbp:fledging_period
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approximately 10 weeks
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gptkbp:foraging_behavior
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surface feeding
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gptkbp:habitat
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oceanic islands
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https://www.w3.org/2000/01/rdf-schema#label
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Pterodroma species
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gptkbp:is_a
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gptkb:bird
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gptkbp:lifespan
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up to 30 years
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gptkbp:migration
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long-distance migratory
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gptkbp:nesting
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ground-nesting
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gptkbp:notable_species
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gptkb:Pterodroma_atrata
gptkb:Pterodroma_caribbaea
gptkb:Pterodroma_deserta
gptkb:Pterodroma_macroptera
gptkb:Pterodroma_solandri
gptkb:Pterodroma_arminjoniana
gptkb:Pterodroma_inexpectata
gptkb:Pterodroma_heraldica
gptkb:Pterodroma_leucoptera
gptkb:Pterodroma_incerta
gptkb:Pterodroma_mollis
gptkb:Pterodroma_feae
gptkb:Pterodroma_sandwichensis
gptkb:Pterodroma_longirostris
gptkb:Pterodroma_pycrofti
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gptkbp:predators
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rats
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gptkbp:size
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medium to large
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gptkbp:subspecies
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gptkb:Procellariinae
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gptkbp:threats
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habitat loss
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gptkbp:vocalization
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varied calls
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