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
|