48 
This species obtains the different appellations of die 
Button-bird, and Demoiselle, or Lady ; for no sooner 
does it perceive itself noticed, than it begins to dance, or 
curvet, and to exhibit a variety of gesticulations ; but 
whether these antic tricks proceed from vanity or fear, 
is a matter as yet undecided. 
The Numidian Crane is adorned with a crest of white 
feathers ; but the rest of the plumage has a leaden grey 
colour, except some large feathers in the wings, which 
are darker, as are a few about the head and neck. Be- 
sides the crest, the fore part of the neck is covered with 
some black feathers composed of very fine soft filaments 
which hang down on the stomach, and give a degree of 
elegance to the whole figure. 
