Sentence:  74 "ter A".—Scops gymnopodus. "Gr." ... [F]eathers of the crown varied with blackish mesial streaks; the cross <WSD>vermiculations</WSD> being also rather coarser than on the back, all with concealed tawny buff bases, but very few with any indications of a subterminal buff bar, so that the general appearance of the head is very uniform; ... 
Meaning of the word marked with <WSD> tags:  A pattern of irregular wavy lines resembling worms or their casts or tracks, found on the plumage of birds, used to decorate artworks and buildings, etc. (from early 17th c.)