What other animals are related in the hummingbird family?

Hummingbirds belong to the family Trochilidae and are closely related to other bird families such as the swifts (family Apodidae) and the tree swifts (family Hemiprocnidae). These birds share certain morphological features and behaviors, such as their aerial abilities and rapid wing beats. Additionally, they are all part of the order Apodiformes, which highlights their evolutionary connections within the avian world.