Just parrots?? You're lucky they're not pelicans!!
Now THOSE boys can generate a load! I've found that you can't keep the birds completely off the boat, but there are things you can do to minimize the amount of cleanup. My policy is this: If they can't sit, they can't sh*t. Here's my setup:a) monofilament between mast and upper shrouds, about 3 in. above each spreader. If the mast and spreaders are narrow enough you don't have to tie off to the mast, just go from one shroud to the other, running the mono past the front of the mast so you don't foul the sail track. If the mast or spreader is wide, put a screw on each side of the mast above the middle of the spreader and run the mono from each one out to the respective shroud.b) the business end of a clear plastic picnic fork epoxied to the masthead below the Windex where it won't foul the vane. When anybody asks, I tell them it's "one a' them new-fangled lightning arrestors".c) a piece of nylon line (1/4 inch is good) tied to the mast above the sail cover and run out to the topping lift. I leave enough slack so that it hangs in a curve, roughly parallel to the top of the sail cover. I add strips of shiny mylar (old happy birthday balloons) from the line to heighten the effect.This should eliminate about 75% of your cleaning chore. Good luck.PeterH23 "Raven"