American kestrels and other hawks, such as sharp-shinned hawks and Cooper's hawks, eastern screech owls, gulls, common grackles, boat-tailed grackles, rats, squirrels, weasels, raccoons, bobcats, domestic cats, snakes, bullfrogs, fish and fire ants are predators of barn swallows. Barn swallows usually give alarm calls when predators come near. Most predators of barn swallows attack the nestlings, but hawks, falcons, and owls tend to hunt adults.
Barn swallows mainly escape predators by being swift and agile in flight and by building their nests in places that are difficult for predators to reach.
- American kestrels (Falco sparverius)
- sharp-shinned hawks (Accipiter striatus)
- Cooper's hawks (Accipiter cooperii)
- eastern screech owls (Otus asio)
- gulls (Laridae)
- common grackles (Quiscalus quiscula)
- boat-tailed grackles (Quiscalus major)
- brown rats (Rattus norvegicus)
- squirrels (Sciuridae)
- weasels (Mustela)
- raccoons (Procyon lotor)
- bobcats (Lynx rufus)
- domestic cats (Felis silvestris)
- snakes (Serpentes)
- bullfrogs (Lithobates catesbeianus)
- fish (Actinopterygii)
- fire ants (Formicidae)
- Barker, E., P. Ewins, J. Miller. 1994. Birds breeding in or beneath Osprey nests. Wilson Bulletin, 106: 743-750.