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gptkbp:instance_of
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gptkb:bird
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gptkbp:breeding_behavior
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monogamous
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gptkbp:breeding_range
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western North America
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gptkbp:breeding_season
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April to July
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gptkbp:call
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short and sharp
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gptkbp:color
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hooked
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gptkbp:coloration
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white underparts
olive-green above
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gptkbp:common_name
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gptkb:Cassin's_vireo
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gptkbp:conservation_efforts
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habitat protection
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gptkbp:conservation_status
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gptkb:Least_Concern
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gptkbp:diet
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insects
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gptkbp:egg_color
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white with speckles
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gptkbp:egg_laying
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3 to 5 eggs
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gptkbp:eye_color
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dark brown
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gptkbp:family
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gptkb:Vireonidae
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gptkbp:first_described_by
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gptkb:John_Cassin
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gptkbp:fledging_period
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about 14 days
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gptkbp:foraging_behavior
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gleaning insects from foliage
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gptkbp:genus
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Vireo
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gptkbp:habitat
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deciduous forests
woodlands
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https://www.w3.org/2000/01/rdf-schema#label
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Cassin's vireo
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gptkbp:incubation_period
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about 14 days
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gptkbp:length
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11.4 to 12.7 cm
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gptkbp:migration
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migratory
up to 3000 km
to Central America
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gptkbp:nesting
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cup-shaped nest
female builds nest
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gptkbp:nesting_site
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in shrubs or trees
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gptkbp:non-breeding_habitat
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tropical forests
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gptkbp:order
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gptkb:Passeriformes
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gptkbp:population_trend
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gptkb:stable
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gptkbp:predators
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snakes and birds of prey
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gptkbp:related_species
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Hutton's vireo
yellow-throated vireo
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gptkbp:scientific_name
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gptkb:Vireo_cassinii
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gptkbp:social_behavior
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solitary or in pairs
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gptkbp:song
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melodic and varied
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gptkbp:subspecies
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gptkb:Vireo_cassinii_cassinii
gptkb:Vireo_cassinii_stephensi
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gptkbp:territorial_behavior
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defends breeding territory
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gptkbp:vocalization
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varied and complex
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gptkbp:was_marked_by
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distinctive eye ring
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gptkbp:weight
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9 to 12 g
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gptkbp:wildlife
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popular among birdwatchers
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gptkbp:wingspan
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20 to 23 cm
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gptkbp:wintering_range
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southern Mexico to Central America
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gptkbp:bfsParent
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gptkb:John_Cassin
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gptkbp:bfsLayer
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7
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