BIRD "R"s
'(<a href="http://www.j-archive.com/media/2010-04-27_DJ_23.jpg" target="_blank">Jimmy of the Clue Crew shows three different kinds of bird feet on the monitor.</a>)  There's a diversity of form & function in bird feet; whether for perching, for grasping or for defense, like the talons on these--a term for birds of prey'
a raptor