How does a tree swallow defend itself from predators?

Tree swallows primarily defend themselves from predators through agility and speed in flight, which allows them to evade attacks. They often perform swift aerial maneuvers and can quickly change direction to escape. Additionally, tree swallows may choose nesting sites in locations that are less accessible to predators, such as in cavities or high up on structures. When threatened, they can also engage in mobbing behavior, joining other birds to harass and drive away potential threats.