How to Keep Pigeons From Nesting Under Your Solar Panels
Why the gap under your panels is a pigeon magnet, the real risks it creates, and how to permanently solve it.
If you’ve heard cooing or scratching sounds coming from under your solar array, you’re not imagining it — pigeons nesting under panels is one of the most common issues solar panel owners run into.
Why Pigeons Love the Space Under Solar Panels
The gap between a rooftop array and the roof surface is close to ideal from a pigeon’s perspective: sheltered from weather, elevated above ground predators, and generally undisturbed. Pigeons are also creatures of habit — once a location proves to be a good nesting spot, the same birds (and their offspring) tend to return to it repeatedly, sometimes for years.
Why This Is a Real Problem, Not Just a Nuisance
Fire risk. Nesting material — twigs, dried grass, and similar debris — accumulates near your array’s wiring and electrical connections. That’s a genuine fire hazard, not a hypothetical one.
Wiring and roof damage. Nests and accumulated droppings can degrade wiring insulation and roofing material over time. Droppings themselves are acidic and accelerate wear on whatever surface they sit on.
It gets worse before it gets better. An established nesting site tends to attract more birds over time, not fewer, especially once pheromone residue builds up.
The Two-Step Fix
Step one: clear out what’s already there. If birds are actively nesting, that needs to be addressed first — removing nesting material and sanitizing the area to clear out residue that would otherwise continue attracting birds back. See Bird Nest Removal & Sanitizing for that service.
Step two: install a physical barrier. The only truly permanent fix is guard mesh installed around the perimeter and gaps of your array, physically blocking access to the space underneath. Without this step, the same spot that attracted birds once will very likely attract them again. See Bird & Critter Guard Installation for details.
Does Guard Mesh Affect My System’s Output?
No — mesh is installed around the edges and gaps of your array, not over the panels themselves, so it has zero effect on sunlight reaching your cells.
Where This Comes Up Most in SLO County
We see this most in Morro Bay, Los Osos, and Cambria, where open space, the estuary, and mature tree cover correlate with higher bird activity — though it’s a countywide issue wherever a solar array creates a sheltered gap.
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