the destruction of swallow nests is not only ecologically damaging but also carries notable legal consequences. A recent case highlights the importance of protecting these birds, with convictions reaching several thousand euros for those who destroy their nests.

The Energy Cost of Rebuilding

Swallows exhibit remarkable consistency in their nesting habits. They typically reuse their nests year after year, making the destruction of these structures especially detrimental. As one expert noted, The swallows reuse their nests, year after year. forcing them to rebuild new nests asks them for a lot of energy. This added energy expenditure can significantly impact their ability to thrive and reproduce.

The protection extends to the nests of all birds, with very few exceptions. Any intervention requires explicit authorization from the relevant authorities, such as the Nature and Forests Department (DNF).

Declining Populations and the Importance of Nest Preservation

Swallow populations are facing numerous threats, leading to a decline in their numbers. While the destruction of nests is a significant factor, other issues contribute to this decline. These include a decrease in insect populations, which serve as a primary food source, and alterations to their wintering habitats in Africa.

However, there is a positive correlation between nest preservation and population health. It is nevertheless noted that in the neighborhoods where the nests of window swallows are respected, their populations are doing well. This is why it is absolutely not necessary to destroy their nests.

The futility of Relocation

Some individuals may consider moving nests to mitigate any perceived nuisance. However, this approach is strongly discouraged. Trying the thing would be to destroy it, which is prohibited. And even if the displacement was possible, the nest would be instantly abandoned. The disturbance caused by relocation is often fatal to the nest and its inhabitants.

Mitigating Nuisance: A Practical Solution

While swallow nests can sometimes cause minor inconveniences, such as droppings, simple solutions exist to address these issues without harming the birds. Charles Carels notes:

Hironde nests can cause some discomfort. Young droppings fall under the nest and dirty the sidewalk. To remedy it, you can place a 50 cm board below the nests to recover the droppings.

Charles Carels, Ornithologist