[1] : The Collaborative International Dictionary of English v.0.48

mocking \mock"ing\, a.
   imitating, esp. in derision, or so as to cause derision;
   mimicking; derisive.
   1913 webster

   mocking thrush zool., any species of the genus
      harporhynchus, as the brown thrush harporhynchus
      rufus.

   mocking wren zool., any american wren of the genus
      thryothorus, esp. thryothorus ludovicianus.
      1913 webster mockingbird
see also:
mocking thrush harporhynchus harporhynchus rufus mocking wren thryothorus thryothorus ludovicianus 

[2] : The Collaborative International Dictionary of English v.0.48

brown thrush \brown" thrush"\ zool.
   a common american singing bird harporhynchus rufus,
   allied to the mocking bird; -- also called brown thrasher.
   1913 webster
see also:
harporhynchus rufus brown thrasher 

Rufus >> R Words
Rufus, definition of term: Rufus
rufus_pag1.html

Harporhynchus >> H Words
Harporhynchus, definition of term: Harporhynchus
harporhynchus_pag1.html