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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
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gptkbp:adult_plumage
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white and gray
brown and mottled
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gptkbp:aircraft_operated
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gray
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gptkbp:behavior
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gregarious
loyal to nesting sites
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gptkbp:breeding_season
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May to July
often nests in colonies
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gptkbp:calls_for
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soft and high-pitched
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gptkbp:clutch_size
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2–4 eggs
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gptkbp:color
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gptkb:black
black cap on head
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gptkbp:common_name
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gptkb:Bonaparte's_gull
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gptkbp:conservation_efforts
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monitored by bird conservation groups
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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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featured in birdwatching
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gptkbp:diet
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gptkb:fish
insects
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gptkbp:egg_color
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pale blue
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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:first_described_by
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gptkb:Charles_Bonaparte
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gptkbp:fledging_period
|
4–5 weeks
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gptkbp:foraging_behavior
|
scavenging
surface feeding
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gptkbp:genus
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gptkb:Larus
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gptkbp:habitat
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gptkb:North_America
coastal areas
marshes
freshwater lakes
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|
https://www.w3.org/2000/01/rdf-schema#label
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Larus philadelphia
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gptkbp:interacts_with
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often seen in urban areas
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gptkbp:length
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30–36 cm
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gptkbp:migration
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migratory
late summer to early fall
north-south migration
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gptkbp:nesting
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ground-nesting
near water bodies
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gptkbp:order
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gptkb:Charadriiformes
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gptkbp:predators
|
eagles
gulls
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gptkbp:range
|
North America and parts of Europe
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gptkbp:related_species
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gptkb:Larus_argentatus
gptkb:Larus_glaucescens
gptkb:Larus_delawarensis
gptkb:Larus_canus
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gptkbp:tail_type
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white with black tips
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gptkbp:vocalization
|
distinctive calls during breeding season
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gptkbp:weight
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200–300 g
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gptkbp:wingspan
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76–84 cm
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gptkbp:wintering_range
|
coastal areas of the United States
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gptkbp:year
|
1840
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