Gulls loaf where they can see. A dock gives them height over open water, a clear view in every direction, and rails, pilings, boat covers and canvas to sit on — and everything they leave behind lands on the boat, the deck and the furniture. Marinas get the same problem at scale, with the added difficulty that the structures are wet, salt-laden and moving.
Working around water narrows what is appropriate. There is usually little to exclude birds from, and what you apply matters. Everything below treats the dock and its structures — rails, pilings, posts and decking.
Visual Deterrent on the Dock
The Seagull Effigy is the product Flock Free names directly for this location — docks, piers and boats are all in its listed applications. Hung where approaching gulls can see it and moved every week or two, it is usually the first thing to put up.
Seagull Effigy
$119.00
Lists waterfront homes, docks, piers, boats, pools and patios among its applications. Move it periodically so gulls do not settle to it.
Scent Around the Dock
The Scent Dispenser releases a grape aroma birds find unpleasant across a wider area than the pucks alone, and Flock Free lists boats among its applications. It suits a slip, a covered dock or a boathouse better than an exposed open frontage. For use around children and pets. Use as directed.
Scent Dispenser
$64.99
Lists boats, restaurants and backyards among its applications. Indoor and outdoor use. Scent Pucks sold separately.
Spikes on Rails, Pilings and Posts
Stainless steel is the point here rather than the spike: Flock Free specifies that these will not corrode in salt air, which is what rules most hardware out on a dock. They suit piling caps, rail tops, post caps and the frame of a covered slip — the narrow horizontal runs a gull chooses.
Stainless Steel Bird Spikes – 100 ft
$325.00
100 ft. Stainless steel — specified by Flock Free as non-corroding in salt air. Suits piling and post caps, rail tops and slip frames.
On a Boat Hoist Canopy
A boat hoist canopy gives gulls a raised, flat, open surface with a clear view of the water, and whatever they leave there lands on the boat underneath. The Seagull Stopper is built for that canopy: posts fitted to the canopy carry lines above the surface, breaking up the open area a gull needs in order to settle. It comes as a 4-post or 6-post kit.
Seagull Stopper – Bird Deterrent System for Boat Hoist Canopies
4-post $199.95 · 6-post $299.95
Posts and lines fitted on top of a boat hoist canopy. Corrosion-resistant components and full canopy coverage.
Where To Start
Start with the Seagull Effigy — hung where approaching gulls can see it and moved every week or two, it handles most of what a private dock actually sees. Add spikes to the piling caps, post caps and rail tops that gulls keep coming back to, since those are the surfaces they choose. Where the space is enclosed enough to hold scent — a covered slip or a boathouse — the Scent Dispenser works alongside both.
Prices shown as listed at the time of publication.
Related Bird Control Resources
See also bird control for areas around or over water for the wider picture, and covered areas for boathouses and covered slips. Docks and marinas are most often a problem with seagulls, geese, cormorants and blue herons. You can also browse the full Bird Control range.