In a bid to assist tree swallows in finding suitable habitats for breeding, a Halifax resident is advocating for the construction and installation of nesting boxes on residential properties. Jessica Ryuzaki shared that the inspiration for this initiative struck her during a casual walk through the city, noticing the increasing tree removals and pondering the impact on the local wildlife, particularly the birds. She emphasized the significance of these avian creatures in the community, reminiscing about their cheerful chirping each morning.
Tree swallows and similar aerial insectivores have witnessed a decline in population in Nova Scotia and P.E.I since the 1970s, according to the Canadian Breeding Bird Survey. These birds are cavity-nesters, preferring holes or crevices within trees as their dwellings. While the concept of nesting boxes is not novel for providing alternative homes when natural tree habitats are scarce, Ryuzaki stressed the simplicity and affordability of crafting one, suggesting that basic materials from a dollar store could suffice.
Tony Millard, the president of the Nova Scotia Bird Society, endorsed Ryuzaki’s idea and is leveraging social media to raise awareness. He recommended that nesting boxes be placed in open, sunny, grassy areas about two meters above ground level to deter ground predators, with an orientation facing south or east to shield against harsh winds.
The initiative, now named ReNest Nova Scotia, is distributing templates for constructing these boxes. Millard highlighted that besides benefiting tree swallows, other bird species could also utilize these nesting sites, providing homeowners with the added advantage of reduced insect presence in their yards as the swallows feed on bugs.
Winter is deemed the optimal period for box construction, urging individuals to utilize indoor time for building and installing the boxes before April, just ahead of the spring breeding season. Ryuzaki expressed enthusiasm for the growing interest in the project, anticipating the sight of these boxes in yards come spring, envisioning a community-wide effort in Halifax to support avian conservation.
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