id go in before daylight ....set-up ..... wait til the birds leave then hit em when they come back in after feeding .... sounds like a roosting area .... another thing to keep in mind is .... those birds in there now will go out to feed ... and more than likely other birds (fresh migrators) will hook up with them and follow em home (the pond) .... ya will see that the numbers of birds will raise as the season progresses ..... at least thats what i have noticed here .... another thing to keep in mind also is .... when the pond starts to ice up (if it ices) hunt it in the eves also on overcast days when the birds will come to roost earlier (before end of legal shooting .... how i see it is ... once its frozen ... ya wont be huntin it anymore that season ...in short ... get em while ya can ... but hunt it as long as ya can