Assertion: great horned owl's nest | /r/HasProperty | lined with flag
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Source sentences:
text: These nests are originally constructed of large sticks and limbs, lined with dead grasses, palmetto leaves, flags, and weeds: usually with swamp grasses alone: and after being taken by the Owls are always further thickly lined with scales of pine bark, a material I have never found in any quantity in the nests occupied by the Eagles.