Arguably the most hunted critter in the area just outside of the EL docks, I have it almost confirmed that their placeholders are thicket deer (non-Heroic) and regular Grove Badgers. Whack on some of the plentiful non-Heroic deer populating the zone and you'll start to see some young grove badgers appear.
For such a multi-purpose quest mob SOE really ought to think about putting more than 3 down at a time.