African River Tern

GPTKB entity

Statements (51)
Predicate Object
gptkbp:instanceOf bird
gptkbp:age fledglings
gptkbp:aircraft white with black tips
gptkbp:airlines graceful
gptkbp:behavior social
dependent on parents
fishing in groups
gptkbp:bodyStyle long and slender
gptkbp:breedingSeason varies by region
aerial acrobatics
gptkbp:callsFor trumpet-like
gptkbp:colors white
yellow
black
distinctive black cap
gptkbp:diet fish
gptkbp:distribution sub-Saharan Africa
gptkbp:eggColor 2-3 eggs
gptkbp:family Laridae
gptkbp:fauna gptkb:Sterna_aurantia
Common Tern
Sandwich Tern
gptkbp:fledgingPeriod about 4 weeks
gptkbp:foragingBehavior dive
gptkbp:genus Sterna
gptkbp:habitat riverbanks
gptkbp:headlights white
forked
https://www.w3.org/2000/01/rdf-schema#label African River Tern
gptkbp:incubationPeriod about 21 days
gptkbp:length 30-35 cm
gptkbp:lensType slender and pointed
gptkbp:migration seasonal
some populations are migratory
gptkbp:nesting on the ground
scrapes in sand
gptkbp:populationTrend stable
gptkbp:predators birds of prey
gptkbp:socialStructure colonial
gptkbp:sustainability_initiatives Least Concern
gptkbp:threats pollution
habitat loss
human disturbance
gptkbp:visitedBy wetlands
lakes
rivers
gptkbp:vocalization varied calls
gptkbp:weight 100-150 g
gptkbp:wildlife protected areas
sandbars
gptkbp:wingspan 75-85 cm