gptkbp:instance_of
|
gptkb:bird
|
gptkbp:adult_plumage
|
darker and more mottled
|
gptkbp:behavior
|
diurnal
|
gptkbp:breeding_range
|
North America and parts of Europe
|
gptkbp:breeding_season
|
spring to summer
|
gptkbp:call
|
mewing sound
|
gptkbp:clutch_size
|
3 to 7 eggs
|
gptkbp:color
|
brown and white
|
gptkbp:coloration
|
sexual dimorphism present
|
gptkbp:common_name
|
gptkb:Northern_Harrier
|
gptkbp:conservation_efforts
|
habitat protection initiatives
|
gptkbp:conservation_status
|
gptkb:Least_Concern
|
gptkbp:cultural_significance
|
symbol of freedom
|
gptkbp:diet
|
small mammals
|
gptkbp:egg_color
|
white or pale blue
|
gptkbp:family
|
gptkb:Accipitridae
|
gptkbp:fledging_period
|
about 6 weeks
|
gptkbp:flight_style
|
low and gliding
|
gptkbp:foraging_behavior
|
hunting from the air
|
gptkbp:genus
|
gptkb:circus
|
gptkbp:habitat
|
wetlands
|
gptkbp:habitat_preference
|
prefers open habitats with cover.
|
gptkbp:hair_color
|
varies with age and season
|
https://www.w3.org/2000/01/rdf-schema#label
|
Marsh Hawk
|
gptkbp:hunting_technique
|
early morning and late afternoon
open fields and marshes
uses low flight to surprise prey
|
gptkbp:impact
|
habitat loss due to development
|
gptkbp:incubation_period
|
about 30 days
|
gptkbp:lifespan
|
up to 10 years in the wild
|
gptkbp:mating_system
|
aerial displays and calls
|
gptkbp:migration
|
up to 1,000 miles
migratory bird
tracked using satellite technology
moves south in winter
|
gptkbp:nest_location
|
in tall grass or reeds
|
gptkbp:nest_material
|
grasses and reeds
|
gptkbp:nesting
|
gptkb:ground
returns to same nesting site annually
|
gptkbp:predators
|
larger birds of prey
raccoons and foxes
|
gptkbp:prey
|
prefers voles and mice
|
gptkbp:range
|
gptkb:North_America
|
gptkbp:related_species
|
other harriers
|
gptkbp:reproduction
|
lays 3-7 eggs
|
gptkbp:research_interest
|
studied for ecological role
|
gptkbp:size
|
1.5 to 2.5 pounds
approximately 18-24 inches
|
gptkbp:social_behavior
|
solitary or in pairs
|
gptkbp:species
|
gptkb:Circus_cyaneus
|
gptkbp:subspecies
|
gptkb:Circus_cyaneus_cyaneus
gptkb:Circus_cyaneus_hudsonius
gptkb:Circus_cyaneus_rufus
|
gptkbp:success
|
varies by environmental conditions
|
gptkbp:tail_type
|
long and tapered tail
|
gptkbp:territorial_behavior
|
defends nesting area
|
gptkbp:vision
|
excellent eyesight
|
gptkbp:vocalization
|
varied calls during courtship
|
gptkbp:wildlife
|
popular among birdwatchers
|
gptkbp:wing_configuration
|
long and narrow wings
|
gptkbp:wingspan
|
approximately 3.5 feet
|
gptkbp:wintering_range
|
southern United States and Mexico
|
gptkbp:bfsParent
|
gptkb:Northern_Harrier
gptkb:hen_harrier
gptkb:The_American_Marsh_Hawk
gptkb:northern_harrier
|
gptkbp:bfsLayer
|
6
|