09/18/2026
Tucked amongst the rocky ledges near our barn, cliff swallows have formed a hidden colony amongst the rocks. Constructed entirely out of mud, their gourd-shaped nests nearly blend into their surroundings. Each nest is built over the course of several weeks, during which the swallows will take 1,000-1400 trips to transfer wet mud in their beaks to build the nest.
In the morning and late afternoon, cliff swallows are particularly active, often swooping acrobatically through the air as they hunt. Cliff swallows are considered aerial insectivores, meaning that they catch and feed on insects in flight. They are so efficient at this that a single cliff swallow can consume as many as 6,000 insects in one day.
Unlike most bird species, cliff swallows have readily adapted to the changing landscapes of development. While we find ours nestled amongst the rocky cliff sides, they are just as readily found in outdoor sheds, beneath overpasses and bridges, or other spaces that mimic the protection of their traditional cliffside habitat.