The Collaborative International Dictionary of English v.0.48:

Penduline \Pen"du`line\, n. [F. See Pendulum.] (Zool.)
   A European titmouse (Parus pendulinus, syn. Aegithalus
   pendulinus). It is noted for its elegant pendulous purselike
   nest, made of the down of willow trees and lined with
   feathers.
   [1913 Webster]