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gptkbp:instance_of
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gptkb:bird
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gptkbp:bfsLayer
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6
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gptkbp:bfsParent
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gptkb:Larus_crassirostris_crassirostris
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gptkbp:adaptation
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adapted to urban environments
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gptkbp:adult_plumage
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brown and mottled
acquired after 3 years
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gptkbp:behavior
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gregarious
often seen in large flocks
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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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typically 2-3 eggs
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gptkbp:color
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gptkb:yellow
dark gray and white
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gptkbp:conservation_efforts
|
monitoring populations
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gptkbp:conservation_status
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gptkb:Least_Concern
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gptkbp:cultural_significance
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not widely recognized
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gptkbp:diet
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gptkb:product
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gptkbp:distribution
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gptkb:North_America
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gptkbp:egg_color
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1-3 eggs per clutch
pale blue or green
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gptkbp:family
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gptkb:Laridae
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gptkbp:first_described_by
|
by John James Audubon
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gptkbp:fledging_period
|
about 6 weeks
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gptkbp:foraging_behavior
|
scavenger
opportunistic feeder
fishing ports and dumps
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gptkbp:genus
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gptkb:Larus
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gptkbp:habitat
|
Arctic regions
coastal areas
marine environments
prefers rocky shorelines
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Thick-billed Gull
|
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gptkbp:launch_date
|
about 28 days
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gptkbp:length
|
50–60 cm
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gptkbp:lifespan
|
10-15 years
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gptkbp:migration
|
Pacific Coast
migratory
late summer to early fall
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gptkbp:nesting
|
monogamous
varies by location
ground-nesting
cliffs and islands
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gptkbp:order
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gptkb:Charadriiformes
|
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gptkbp:predators
|
eagles and foxes
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gptkbp:related_species
|
gptkb:Glaucous-winged_Gull
gptkb:Western_Gull
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gptkbp:research
|
important for ecology
|
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gptkbp:research_focus
|
indicator species for ecosystem health
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gptkbp:subspecies
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gptkb:Larus_thayeri
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gptkbp:threats
|
habitat loss
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gptkbp:voice_actor
|
harsh calls
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gptkbp:weight
|
800–1,200 g
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gptkbp:wingspan
|
120–140 cm
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gptkbp:wintering_range
|
coastal areas of the United States
|