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gptkbp:instance_of
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gptkb:species
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gptkbp:bfsLayer
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5
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gptkbp:bfsParent
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gptkb:Larus_californicus
gptkb:Larus_fuscus_graellsii
gptkb:Great_Black-backed_Gull
gptkb:Larus_argentatus
gptkb:Great_black-backed_gull
gptkb:Larus
gptkb:Larus_argentatus_argenteus
gptkb:Larus_argentatus_smithsonianus
gptkb:Larus_fuscus
gptkb:Larus_occidentalis
gptkb:Larus_occidentalis_livens
gptkb:Larus_occidentalis_occidentalis
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gptkbp:age
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3–4 years
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gptkbp:aircraft_operated
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white with black tips
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gptkbp:behavior
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gregarious
can be aggressive during breeding season
often scavenges from fishing boats
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gptkbp:breeding_season
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spring to summer
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gptkbp:calls_for
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harsh, loud
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gptkbp:clutch_size
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2–4 eggs
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gptkbp:color
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black and white
brown and mottled
black back and wings
white head and underparts
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gptkbp:common_name
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gptkb:great_black-backed_gull
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gptkbp:conservation_status
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gptkb:Least_Concern
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gptkbp:diet
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gptkb:product
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gptkbp:distribution
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North Atlantic
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gptkbp:egg_color
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pale blue or green
yellow with a red spot
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gptkbp:eye_color
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dark brown
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gptkbp:family
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gptkb:Laridae
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gptkbp:fledging_period
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6–7 weeks
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gptkbp:foraging_behavior
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scavenger
dive for fish
search for food on land
steal from other birds
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gptkbp:habitat
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gptkb:Europe
gptkb:North_America
coastal areas
can be large
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|
https://www.w3.org/2000/01/rdf-schema#label
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Larus marinus
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gptkbp:impact
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pollution
habitat loss
hunting
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gptkbp:length
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60–66 cm
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gptkbp:lifespan
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10–26 years
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gptkbp:migration
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partial migrant
some migrate south in winter
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gptkbp:nesting
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gptkb:beach
beaches
islands
cliffs
grasses
feathers
ground-nesting
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gptkbp:order
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gptkb:Charadriiformes
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gptkbp:population_trend
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gptkb:Professional_Wrestler
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gptkbp:predators
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eagles
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gptkbp:related_species
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gptkb:Larus_argentatus
gptkb:Larus_fuscus
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gptkbp:research
|
often seen in large groups
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gptkbp:social_structure
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loose colonies
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gptkbp:subspecies
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gptkb:Larus_marinus_argenteus
gptkb:Larus_marinus_marinus
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gptkbp:succeeded_by
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50–70%
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gptkbp:tail_type
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white with black edges
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gptkbp:territorial_behavior
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defends nesting area
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gptkbp:vocalization
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varied calls
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gptkbp:weight
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0.9–2.3 kg
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gptkbp:wingspan
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150–165 cm
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