So, researching my family shield I actually came across two different shields, both with "McHugh" as their original name or some variation of Son of Hugh (or Aodh). Anyway, below are the links for the two different shields. One with the red hand of Ulster on top, and the other with a yellow lion on a green shield. Can anyone explain to me the difference between the shields? I'm so confused as to why there are two...

http://www.google.com/imgres?imgurl=http://www.heraldry.ws/g...

http://www.google.com/imgres?q=MChugh+family+crest&hl=en...