Discovering a bird’s nest in your fern can be a delightful surprise, offering a unique opportunity to observe wildlife up close. This guide will help you understand this natural phenomenon and how to respond responsibly to protect these tiny inhabitants.
Why Birds Nest in Ferns
Ferns offer several advantages that make them appealing nesting sites for various bird species. Their dense, layered fronds provide effective shelter, shielding nests from rain, direct sun, and strong winds. The intricate foliage also offers excellent concealment, camouflaging the nest from predators such as cats, squirrels, and larger birds.
The compact growth and sturdy fronds of many fern varieties provide a stable base for nest construction. Bird’s Nest Ferns (Asplenium nidus), for example, form a “nest-like basket” or rosette that collects organic matter, creating a supportive foundation. Ferns in hanging baskets are also attractive, as their elevated position makes them challenging for predators to access. Common small songbirds, such as House Finches, Carolina Wrens, and Chipping Sparrows, often nest in these locations.
What to Do When You Find a Nest
When you discover a bird’s nest in your fern, the most important action is to minimize disturbance. Observe the nest from a distance, ideally through a window, to ensure parent birds feel safe enough to continue caring for their young. Approaching too closely can cause stress, potentially leading parents to abandon the nest.
Avoid touching the nest, eggs, or chicks. While human scent doesn’t cause abandonment, direct contact can stress the birds or transmit diseases. Keep pets, especially cats and dogs, away from the area to prevent predation or accidental interference.
If your fern needs watering, do so gently and indirectly. Water the soil from the pot’s edge, avoiding the nest’s center, as direct watering can lower egg temperatures or compromise insulation. Refrain from pruning or relocating the fern until the nesting period is complete.
Most native birds, their nests, and eggs are protected by federal regulations, such as the Migratory Bird Treaty Act (MBTA) in the United States. This law makes it illegal to disturb or remove an active nest containing eggs or brooding adults, and violating it can result in penalties. If a nestling (unfeathered) falls from the nest, gently place it back. If a fledgling (feathered and hopping), leave it alone; its parents are likely nearby. For injured or orphaned birds, contact a local wildlife rehabilitator for guidance.
After the Nest is Empty
Once the birds have fledged and left the nest, you can proceed with post-nesting care for your fern. To confirm the nest is empty, observe it for several days to ensure no ongoing bird activity. Fledglings may occasionally return to the nest for a short period after leaving, so patience is beneficial.
After confirming the nest is no longer in use, it is safe to remove it. Wearing gloves is advised to protect against any bacteria or parasites. Dispose of the old nest by composting it or placing it in a sealed plastic bag to deter predators. Clean the area where the nest was located, using a solution of one part bleach to nine parts water to sanitize the surface. Birds rarely reuse the same nest for subsequent broods. With the nest gone, you can resume your regular fern maintenance, including any necessary pruning or repotting.