Talk:Feats/@comment-172.58.35.113-20191222013958/@comment-80.143.23.191-20191230142602
It means that the chance of catching a rabbit is doubled. So if before you had a - let's say - 20% chance, the feat would make it a 40% chance.
It doesn't mean you get a 100% chance. It doesn't say "100% effective". The word "more" is very important in this case ;)