BLACKTAIL

This one was more difficult (at least for me) compared to the other two earn this title-achievements, because even after 15 hours of playtime the sun (I'm playing the good side) had not moved an inch on the bar for this specialist-title at the moral page.

To move the sun towards the title when you are playing the good side, you have to shoot down birds and their nests. Since this is "bad" for your moralitiy, it will drop considerably. I did this over the course of about 30 minutes and lost more than one of the three segments on the good morality side - so probably better to do this when you have enough good (or bad) morality.

For the bad side you'll have to offer red flowers under the beehives. Since this is a "good deed" you will lose bad morality for that - so keep that in mind.

You can use the short respawn times in this game to your advantage. For my case (birds/nests) I used to warp with the cat from a place with quite a few birds back to Baba's hut, where also about a dozen birds fly above it. After killing those I warped back to the first place, where the birds had respawned already.
Works the same with nests and the beehives, but those are not that common.