What is a five letter word animal starting with the letter R and ending with letter O?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 5 Words with the pattern R---OR. That is, six letter Words with 1st letter R and 5th letter O and 6th letter R. In alphabetical order, they are:

rancor

raptor

rector

rhetor

rizzor