9 Answers

Cover the boat dock and close it in. That's about it. You have your boat dock out there in mother nature where the birds live. Are you this against sharing the world with animals? God did not give this world to only man. Remember, he created the animals first. He placed man in their territory. Can't you get along with some birds? Run a hose to the dock to keep it clean. I hope you don't have any trees that you want the birds to stay out of too. I don't think they read, no trespassing signs. 

Have you thought of trying a Scare-Crow?

If it's seagulls.....Nothing! They are cheeky little buggers & they have no fear of us.

One of my neighbors put small flags on the posts of the docks. They move  in the wind and he has not had a problem since.. We have a great congregation of male mallard ducks, 15 males who were recently joined by three females who probably lost theire offspring. Right now, they are all sleeping on my dock.I have to clean the mess every day. I dont mind. They even walk around my Garden and eat bird and squirrel food, that drops on the ground.. I also have two different mother ducks coming every day with theire offspring. One has 4 ducklings and the other one only two.

Get a cat.

IF I HAD A BOAT . I WOULD NOT CHASE "BIRDS IN BIKINIS OFF MY DECK !!

Keep people on your deck and don't feed the durn birds.....

to keep sea-gulls of my boat i hang long lines of old cd`s.the flashing in the sun seems to work, old Des O`Conner cd`s are the most effective!

To keep critters out of our gardens we use pie plates tied to metal garden stakes! Sounds like the old cd's  bowlesy mentioned! Works a little! That is help!