Shattered Kingdoms

Does skirmish continue after the first target has fallen?
Say if I kill one half-elf, will it skirmish another or will I have to skirmish again?

Test it?

I did, looks like only one target at one time.

Skirmish only works until the first shot is fired, after that, auto fire takes off, and thus if the target skirmish acquired for you moves out of your range for more than half a second or so (depending on the timing of the combat rounds that is) you will need to enter the skirmish command again to resume your looking for him/her.