Assertion: nightjar's plumage | /r/HasProperty | brown
Facets:
Source sentences:
text: The plumage of the young is brown above and white beneath, delicately marked with undulating brown lines of various shades.
text: The plumage of the young is brown above, and upon the belly and breast white striped across with light brown; the sides of the head and a line over the breast are of the latter colour.
text: Otherwise, their cryptic plumage is mainly variegated buff and brown, as typical for the dark tropical woodland nightjars.