Helpful advice about keeping the doves away: Put up little sticks with shiny aluminum foil flags on them. They see the flags move and the light reflect and they fly away. Sounded reasonable to me. No harm in trying.
Just sat down again from my quick peek at the back yard. What do you suppose I saw? Hundreds of doves grazing on what remains of my grass seed. The little aluminum flags? You might well ask. The doves were cuddled right up to them eating away without fear. Peaceful doves feasting. I have not just two turtle doves but two time two times twelve plus. Perhaps a partridge in a pear tree would help, but three golden rings would be more useful, assuming I could pawn them to buy more bird seed.