*JUNE 2019 UPDATE* A couple of the fine folk using this solution have noted that this achievement is quite buggy of late. Not sure the cause of the problem this far after launch. If it doesn't pop for you, I'd recommend finishing the game/all other achievements, wiping your save data for Edith Finch, and retrying. It's around 10 minutes in (if that) so its easy to retry, fortunately!
This is probably the most "missable" of the misc. achievements, but still incredibly easy. Very light spoilers below.
During the very first story vignette (Molly's) you begin eating some questionable food in your room, and then transform into a cat. After you have caught up to the bird, you will turn into an owl.
In this section, you'll be flying over snowy fields and woodland. Your objective is to catch 2 rabbits, and for the achievement you'll need to grab both without missing. This is easily the most "missable" achievement, and the only semi-skill based one in the entire game.
Keep flying overhead until white text with "Rabbit" appears. If the area is very open, follow it until you are close and then go for it by pressing RT and you should catch it easily . If it is by trees, leave the rabbit and go for one more open, as you can lose your target. Stick to open areas, fields etc. You aren't penalised for skipping rabbits, but if you commit with a "scoop" (RT) then you MUST catch 2 rabbits in a row without failing any attempts. If you do fail, just keep going for now; as I mentioned in the introduction to the walkthrough everything is completely replayable.
This is absoltuely replayable after you complete the story, and is only about 3 minutes to get back to the POV of the owl each time.