Bulwer's Petrel

GPTKB entity

Statements (63)
Predicate Object
gptkbp:instance_of gptkb:bird
gptkbp:breeding_behavior tropical and subtropical regions
depends on food availability
found on several islands
gptkbp:breeding_season April to September
gptkbp:climate_impact affected by climate change
gptkbp:clutch_size 1 egg
gptkbp:color dark brown and white
gptkbp:coloration hooked beak
gptkbp:conservation_efforts monitoring populations
gptkbp:conservation_status gptkb:Least_Concern
monitored by Bird Life International
gptkbp:cultural_significance featured in literature
gptkbp:diet zooplankton
gptkbp:distribution worldwide in tropical oceans
gptkbp:egg_color gptkb:white
gptkbp:egg_size about 5 cm long
gptkbp:family gptkb:Procellariidae
gptkbp:fishing_impact bycatch in fisheries
gptkbp:fledging_period about 10 weeks
gptkbp:flight_style graceful gliding
gptkbp:foraging_behavior day and night
surface feeding
scavenging and hunting
gptkbp:genus Bulweria
gptkbp:habitat burrows
open ocean
gptkbp:habitat_preference prefer remote areas
gptkbp:hair_color dark upperparts and white underparts
gptkbp:hatching_time high in undisturbed areas
https://www.w3.org/2000/01/rdf-schema#label Bulwer's Petrel
gptkbp:incubation_period about 50 days
gptkbp:length 30–35 cm
gptkbp:lifespan up to 20 years
gptkbp:mating_system displays and calls
gptkbp:migration seasonal migration
up to several thousand kilometers
irregular migratory behavior
across the Pacific Ocean
follow ocean currents
gptkbp:nesting late winter to early spring
digging burrows
gptkbp:nesting_site remote islands
gptkbp:order gptkb:Procellariiformes
gptkbp:population_trend gptkb:stable
gptkbp:predators feral cats
vulnerable to introduced species
gptkbp:related_species gptkb:Black_Petrel
gptkbp:research_importance studied for migration patterns
gptkbp:social_behavior solitary or in small groups
gptkbp:social_structure monogamous pairs
gptkbp:subspecies Bulweria bulwerii bulwerii
Bulweria bulwerii schlegeli
gptkbp:tail_type forked tail
gptkbp:threats habitat loss
gptkbp:vision excellent vision for spotting prey
gptkbp:vocalization soft cooing sounds
gptkbp:weight 200–300 g
gptkbp:wildlife urban development and pollution
gptkbp:wing_configuration long and narrow wings
gptkbp:wingspan 80–90 cm
gptkbp:bfsParent gptkb:Soft-plumaged_Petrel
gptkbp:bfsLayer 8