Passeriformes-these birds live in pairs during the breeding season, but they are often seen in mixed flocks outside this period. During the breeding season, they become aggressive and territorial, defending their area and the nesting site.
American Robin (Turdus migratorius)
Juvenile American Robin (Turdus migratorius)
Eastern Bluebird (Sialia sialis)
Juvenile Eastern Bluebird (Sialia sialis)
