Maintaining Nest Boxes at Nikhef

Maintaining Nest Boxes at Nikhef: Supporting Urban Biodiversity

Nest boxes at Nikhef were cleaned and maintained to support local bird populations, demonstrating how small, actions can strengthen biodiversity on site.

Last week, five bird nest boxes located around the Nikhef grounds were cleaned as part of ongoing biodiversity maintenance efforts. The cleaning was carried out by Melissa van Beekveld and Catharina Vaendel, continuing the care of the nest boxes originally installed and maintained by Henk Boterenbrood, whose long-term commitment helps create stable nesting opportunities for local bird species.

picture of coal tit by Sil Westerveld

During the cleaning process, two of the five nest boxes were found to contain old nests, most likely built by great tits (Parus major), a common cavity-nesting bird species in the Netherlands. The presence of nesting material indicates successful use of the boxes during the previous breeding season, demonstrating that the habitat provided is actively supporting local bird populations.

Research consistently shows that artificial nest boxes can significantly benefit cavity-nesting birds, especially in urban and semi-urban environments where natural nesting sites such as tree cavities are limited. By providing safe breeding spaces, nest boxes increase reproductive success, reduce competition for scarce nesting locations, and help stabilize local bird populations. Birds such as great tits contribute to ecosystem health by controlling insect populations, thereby supporting ecological balance.

Regular maintenance, including annual cleaning, is essential. Removing old nesting material reduces parasite loads and improves hygiene conditions, increasing the likelihood that birds will reuse the boxes in subsequent seasons. Well-maintained nest boxes therefore function not only as shelters but as active tools for biodiversity enhancement.

The continued installation and care of these five nest boxes at Nikhef represent a small but meaningful intervention. In addition, Melissa van Beekveld established the Mattermost channel "Birds @ Nikhef" to connect bird enthusiasts on site, encouraging shared observations and strengthening community engagement around biodiversity. By facilitating nesting opportunities and fostering collaboration among colleagues, the initiative contributes to healthier bird populations and strengthens biodiversity across the site, demonstrating how targeted, practical actions can support urban ecosystems.