Based on the input so far, here's the revised "tier" list of animals, taking into account the ideas of ease of finding, ease of killing, and significance of the kill.
.Prey Tier 1. (10) "rock" [effort:0] *COMMON* /.1/ [noquality]
{-} 'Killing a stag, wolf, or lynx.' [optional]
{-} 'Or, killing a bear with a trap.' [optional]
.Prey Tier 2. (7) "rock" [effort:0] *COMMON* /.1/ [noquality]
{-} 'Killing an elk, boar, or seal.' [optional]
.Prey Tier 3. (4) "rock" [effort:0] *COMMON* /.1/ [noquality]
{-} 'Killing a fox, snake, glutton,' [optional]
{-} 'reindeer, beaver or polecat.' [optional]
.Prey Tier 4. (2) "rock" [effort:0] *COMMON* /.1/ [noquality]
{-} 'Killing a wild sow, or badger.' [optional]
{-} 'Or, hunting and killing a bird.' [optional]
{-} 'Double for eagle owls, ravens,' [optional]
{-} 'goshawks, and swans.' [optional]
.Prey Tier 5. (1) "rock" [effort:0] *COMMON* /.1/ [noquality]
{-} 'Killing a squirrel, ermine,' [optional]
{-} 'hare, weasel, or pine-marten.' [optional]
{-} 'Trapping and killing a bird.' [optional]
{-} 'Double for eagle owls, ravens,' [optional]
{-} 'goshawks, and swans.' [optional]
The only other change is that I combined the dwellings into one option, and then added a "Quick EXP" option that will be faster to use once players are sufficiently familiar with the exp rewards.
Tomorrow I'll upload a 'final' (not really final) version in the releases section.