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gptkbp:instance_of
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gptkb:bird
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gptkbp:bfsLayer
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4
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gptkbp:bfsParent
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gptkb:Pelican_Island_National_Wildlife_Refuge
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gptkbp:behavior
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often seen in pairs or small groups
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gptkbp:breeding_season
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spring to summer
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gptkbp:clutch_size
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1-4 eggs
speckled eggs
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gptkbp:color
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black and white
long and pointed
juveniles are brown and white
some have white or pale markings
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gptkbp:conservation_efforts
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habitat protection
public awareness campaigns
monitoring populations
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gptkbp:conservation_status
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least concern
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gptkbp:cultural_significance
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symbol of coastal ecosystems
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gptkbp:diet
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gptkb:mythological_figure
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gptkbp:distribution
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worldwide
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gptkbp:family
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gptkb:Haematopodidae
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gptkbp:fledging_period
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30-40 days
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gptkbp:foraging_behavior
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uses beak to pry open shells
visual foraging
tactile foraging
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gptkbp:genus
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gptkb:Haematopus
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gptkbp:habitat
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coastal areas
rocky shores
mudflats
sandy beaches
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|
https://www.w3.org/2000/01/rdf-schema#label
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oystercatcher
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gptkbp:impact
|
pollution
habitat loss
disturbance from recreation
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gptkbp:incubation_period
|
25-30 days
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gptkbp:lifespan
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up to 20 years
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gptkbp:mating_system
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displays and calls
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gptkbp:migration
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some species are migratory
some migrate south for winter
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gptkbp:nesting
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gptkb:railway_station
grasses
pebbles
shell fragments
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gptkbp:order
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gptkb:Charadriiformes
|
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gptkbp:population_trend
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stable in many areas
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gptkbp:predators
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foxes
birds of prey
seagulls
crows
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gptkbp:related_species
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plovers
sandpipers
turnstones
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gptkbp:research_interest
|
studied for behavior and ecology
|
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gptkbp:social_structure
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monogamous pairs
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gptkbp:subspecies
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gptkb:Black_oystercatcher
gptkb:Pacific_oystercatcher
gptkb:American_oystercatcher
gptkb:Eurasian_oystercatcher
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gptkbp:territorial_behavior
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defends nesting territory
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gptkbp:type_of_care
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both parents care for young
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gptkbp:vocalization
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loud calls
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gptkbp:wingspan
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60-70 cm
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