My question is sort of related to this one, but I am more concerned about saving pokeballs.
When you encounter a pokemon, generally you can assume that the higher CP, the more difficulty you'd have in catching it. However it seems to me that you cannot tell for sure until you use a pokeball and see the green/yellow/red circle.
The problem is that you might waste a pokeball. For example, for pidgey farming, I'd prefer to only get easy to catch pidgeys. Why waste great balls or razz berries on a low CP orange catch rate pidgey right?
While trying to stay true to the spirit of free-to-play, pokeballs are a limited resource. So is there anyway to determine the catchability before using a pokeball? Or maybe there's a way to cancel a pokeball throw (while you are still holding down the pokeball)?
Note: I am not concerned about the specific pokemon catch rate, just if it is an orange~red pidgey, I don't wanna attempt to catch it.