Complex sentence: When feeding, it regularly occurs in small groups, and sometimes hunts with swallows, particularly Barn Swallows and Purple Martins; in mixed-species flocks, it is typically among the lower fliers.
Split into simpler sentences: When feeding, it regularly occurs in small groups, and sometimes hunts with swallows, particularly Barn Swallows and Purple Martins. In mixed-species flocks, it is typically among the lower fliers.