266 The Bird 
body and which, when it flies, blows back between its 
feet. The filament of feathers looks for all the world 
as if a strip of the bird’s plumage had caught on a thorn 
and torn loose. The core of the streamer is a very slender 
Fic. 208.—Umbrella-bird. 
ribbon of skin which hangs from the neck. Would that 
we could state the causes and the manner of the devel- 
opment of these curious structures which our fancy likens 
to an umbrella and a feathery handle! 
One or two small tufts of feathers may spring from 
