the rabbits become lamp shy, because they aint been caught .? If you pick your rabbits you know the dog a good chance of catching,( it will be 1 less none lamp shy rabbit). Ive done loads of times lamped 1 rabbits dog got it, and only 10 yds away another rabbit never moved . I know you( carnt) catch every rabbit, but you can make it easier on the dog and not so many lamp shy rabbits, if just( think) a bit on each run,!! Jim R/M) on here would tell you same, and he gets loads of rabbits
i always go for the easy option bird