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gptkbp:instance_of
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gptkb:bird
|
|
gptkbp:bfsLayer
|
5
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gptkbp:bfsParent
|
gptkb:Black-tailed_Gull
|
|
gptkbp:adult_plumage
|
gray and white
brown mottled
|
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gptkbp:behavior
|
gregarious
foraging
|
|
gptkbp:breeding_season
|
spring to summer
large colonies
|
|
gptkbp:clutch_size
|
2-4 eggs
|
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gptkbp:color
|
gray and white
|
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gptkbp:conservation_status
|
gptkb:Least_Concern
|
|
gptkbp:diet
|
omnivore
fish and invertebrates
insects and scraps
|
|
gptkbp:egg_color
|
speckled brown
70-80 mm
90-100 g
|
|
gptkbp:family
|
gptkb:Laridae
|
|
gptkbp:first_described_by
|
1818
|
|
gptkbp:fledging_period
|
6-7 weeks
|
|
gptkbp:foraging_behavior
|
scavenger
opportunistic
|
|
gptkbp:habitat
|
coastal areas
beaches and estuaries
northern coastal regions
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Eastern Gull
|
|
gptkbp:impact
|
habitat loss
|
|
gptkbp:incubation_period
|
28-30 days
|
|
gptkbp:length
|
50-60 cm
|
|
gptkbp:mating_system
|
aerial displays
|
|
gptkbp:migration
|
seasonal
partial migrant
coastal routes
|
|
gptkbp:nesting
|
ground nests
variable
aggressive
sandy areas
50-70%
grasses and seaweed
|
|
gptkbp:order
|
gptkb:Charadriiformes
|
|
gptkbp:predators
|
eagles
|
|
gptkbp:range
|
gptkb:North_America
|
|
gptkbp:related_species
|
gptkb:Western_Gull
|
|
gptkbp:scientific_name
|
gptkb:Larus_smithsonianus
|
|
gptkbp:social_structure
|
flocks
|
|
gptkbp:subspecies
|
gptkb:Larus_smithsonianus_smithsonianus
gptkb:Larus_smithsonianus_vegae
|
|
gptkbp:territorial_behavior
|
defensive
|
|
gptkbp:vocalization
|
varied calls
|
|
gptkbp:voice_actor
|
harsh calls
|
|
gptkbp:weight
|
800-1200 g
|
|
gptkbp:wingspan
|
130-150 cm
|
|
gptkbp:wintering_range
|
southern coastal regions
|