Solar panels are a smart investment, but they are also a very attractive place for birds to build their nests. The space underneath is warm, dry, and safe from predators. The problem is that these nests can reduce the efficiency of your installation, damage equipment, and cause disturbances at home.
In this article, we explain the clearest signs that birds are nesting under your solar panels—and what you can do to prevent it.
Signs of Birds Nesting Under Solar Panels
- Unusual noises on the roof: scratching, movement, or even chirping near the roof may indicate that birds are entering and leaving the gaps under your panels.
- Excessive bird droppings: large amounts of droppings on the panels or around the house not only look unsightly but also block sunlight and reduce efficiency.
- Debris in gutters and on the roof: twigs, leaves, and grass in the gutters or around the panels are often materials carried by birds to build their nests.
- Unpleasant odors: in summer, accumulated droppings and nesting remains produce bad smells that can spread through the house.
- Drop in energy production: nests block ventilation, raising the temperature under the panels and lowering their efficiency.
- Associated pests: nests can become a source of mites, fleas, or ticks, which may enter the house and pose a health risk.
Risks of Not Acting in Time
Ignoring these signs can be costly. In addition to losing efficiency in your solar system, cables may be damaged, fire risks increase, and repair costs can far exceed the price of a preventive solution.
The Solution: BirdBlocker
The best way to avoid these problems is to stop birds from getting under the panels in the first place. That’s exactly what BirdBlocker does—a system designed to close the gap between panels and roof without blocking ventilation.

- Available in two models: BB125 and BB200, depending on the height of your installation.
- Made of black HDPE, UV resistant and 100% recyclable.
- Includes stainless steel clips for simple and long-lasting installation.
With BirdBlocker you protect your panels, prevent damage, and promote a respectful coexistence with nature.
Conclusion
Spotting birds under your solar panels early is key to protecting your investment and ensuring maximum efficiency. And the best part: it’s a problem you can easily prevent with BirdBlocker.
See BirdBlocker at BirdGard Iberia
Frequently Asked Questions
Why do birds nest under solar panels?
Because the space is safe, warm, and sheltered from predators.
What damage can nests cause?
Loss of efficiency, cable damage, dirt build-up, and increased fire risk.
What is BirdBlocker?
A system of HDPE strips with spikes installed around panels to block bird access without affecting ventilation or damaging the system.