Tree swallows are voracious insect eaters ... “And then we wrap up this field work until next spring,” Etterson said. Because swallows eat insects likely to hatch where PFAS are likely ...

Additionally, most agencies show that the tree swallow nests much further north than the Ada area, however, I have seen them nesting not only in the area, but even further south. So, at the very ...

Ten volunteers took part. Tree swallows are small, acrobatic songbirds that primarily eat insects. They winter in the southern U.S. through Panama, farther north than any other American swallow ...