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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:Black-headed_Gull
gptkb:Common_Black-headed_Gull
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gptkbp:adult_plumage
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dark brown head
white body with grey wings
white head with dark spots
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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
often nests in colonies
highly territorial
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gptkbp:calls_for
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a loud 'kree' sound
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gptkbp:color
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short and stout
white underparts
grey upperparts
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gptkbp:common_name
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gptkb:Black-headed_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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omnivorous
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gptkbp:distribution
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gptkb:Europe
gptkb:Asia
gptkb:North_Africa
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gptkbp:egg_color
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speckled brown
3 to 5 eggs
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gptkbp:family
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gptkb:Laridae
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gptkbp:fledging_period
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4 weeks
after 4 weeks
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gptkbp:foot
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webbed
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gptkbp:foraging_behavior
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diurnal
during the day
scavenger
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gptkbp:habitat
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wetlands
coastal areas
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|
https://www.w3.org/2000/01/rdf-schema#label
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Chroicocephalus ridibundus
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gptkbp:impact
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habitat loss
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gptkbp:incubation_period
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about 3 weeks
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gptkbp:length
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35–38 cm
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gptkbp:lifespan
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10–15 years
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gptkbp:mating_system
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monogamous
aerial displays
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gptkbp:migration
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migratory
short-distance migrator
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gptkbp:nesting
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gptkb:railway_station
grasses
April to July
variable depending on conditions
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gptkbp:order
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gptkb:Charadriiformes
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gptkbp:predators
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foxes
birds of prey
seagulls
crows
aggressive towards intruders
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gptkbp:related_species
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gptkb:Chroicocephalus_cirrocephalus
gptkb:Chroicocephalus_delawarensis
gptkb:Chroicocephalus_genei
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gptkbp:social_structure
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hierarchical
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gptkbp:subspecies
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gptkb:Chroicocephalus_ridibundus_melanocephalus
gptkb:Chroicocephalus_ridibundus_heuglini
gptkb:Chroicocephalus_ridibundus_ridibundus
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gptkbp:tail_type
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white with black tips
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gptkbp:vocalization
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varied calls
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gptkbp:weight
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200–350 g
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gptkbp:wingspan
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85–100 cm
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gptkbp:wintering_range
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coastal regions of Africa
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