Apodidae (Swifts)

There are currently 112 known species of Apodidae which included Swifts. I have photographed 4 (3.6%) of the species in this family of birds.

Chimney Swift (Chaetura pelagica)
Plain Swift (Apus unicolor)
Pallid Swift (Apus pallidus)
White-throated Swift (Aeronautes saxatalis)