In the western hemisphere there is also the Bat Falcon (they are known to hunt hummingbirds too). In Africa there is the Pygmy Falcon.

And the smallest falcon in the world is in Malaysia: Black-thighed Falconet

typically measuring between 14–16 centimetres (5.5–6.3 in) long, with a 27–32 centimetres (11–13 in) wingspan, which is a size comparable to a typical sparrow

This falconet mainly feeds on insects, including moths, butterflies, dragonflies, alate termites and cicadas, occasional small birds, and lizards. Feeding behavior appears to often be social, with feeding parties up to ten recorded.