Sentence:  It must, however, be remarked, that these tufts, or ears, are never erected but when the bird is in a quiescent state. ... When it was asleep or undisturbed, the <WSD>aurated</WSD> feathers were very distinguishable, standing above the rest about half an inch ... 
Meaning of the word marked with <WSD> tags:  Having or resembling ears.