Looking at AJ's tiny pic, I don't believe this is the same error, therefore I'll happily lay claim to this find.
The three circled bubbles are consistent across several examples. There are also other bubbles, which appear to be a little more random. One example also has a cud in the middle of the roo's back, which also appears on coins without the bubbles.
(http://goo.gl/K6PTjj)
And here's another one, this time above the roo.
(http://goo.gl/9tjNoP)
yeah I should have told you about all these cuds I've found there's some on the 2013 as well and a fair few that have the cud half way down the roo's back..I'll scan them all one day like Nevol has, keep lookin :good:
and most of those tiny little cuds I've been throwin back :)
here's a 2013 with a cud on the roo's left foot (http://i39.tinypic.com/2con5s6.jpg)
hope this works or I'll have to do more scans sorry, 2012 back cuds some half way and some near base of roo's tail (http://i40.tinypic.com/34zlp8z.jpg)
I'll have to do better scans sorry :(