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gptkbp:instance_of
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gptkb:bird
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gptkbp:bfsLayer
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4
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gptkbp:bfsParent
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gptkb:Palo_Alto_Baylands_Nature_Preserve
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gptkbp:aircraft_operated
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long and narrow
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gptkbp:behavior
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diurnal
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gptkbp:breeding_season
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March to August
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gptkbp:clutch_size
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3 to 7 eggs
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gptkbp:color
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brown and white
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gptkbp:common_name
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gptkb:Northern_harrier
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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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symbol of freedom
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gptkbp:diet
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small mammals
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gptkbp:egg_color
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white to pale blue
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gptkbp:family
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gptkb:Accipitridae
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gptkbp:first_flight
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gliding
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gptkbp:fledging_period
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30 to 40 days
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gptkbp:foraging_behavior
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hunting in open fields
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gptkbp:genus
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gptkb:carnival
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gptkbp:habitat
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gptkb:North_America
wetlands
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Northern harrier
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gptkbp:hunting_technique
|
early morning and late afternoon
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gptkbp:incubation_period
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30 to 32 days
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gptkbp:length
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40 to 51 cm
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gptkbp:mating_system
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monogamous
aerial displays
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gptkbp:migration
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irregular
partial migrant
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gptkbp:nesting
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gptkb:railway_station
grasses and reeds
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gptkbp:pests
|
ticks and mites
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gptkbp:predators
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larger birds of prey
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gptkbp:related_species
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gptkb:Marsh_harrier
|
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gptkbp:social_structure
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solitary or in pairs
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gptkbp:species
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gptkb:Circus_cyaneus
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gptkbp:status
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studied for ecology
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gptkbp:subspecies
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gptkb:Circus_cyaneus_cyaneus
gptkb:Circus_cyaneus_hudsonius
gptkb:Circus_cyaneus_rufinus
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gptkbp:tail_type
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long and square
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gptkbp:territorial_behavior
|
defends nesting area
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gptkbp:vision
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excellent
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gptkbp:vocalization
|
mewing calls
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gptkbp:weight
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300 to 500 grams
400 to 700 grams
|
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gptkbp:wildlife
|
low hunting flight
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gptkbp:wingspan
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1.1 to 1.4 meters
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gptkbp:wintering_range
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gptkb:Central_America
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