Apus - Species Dictionary - Global : iSpot Nature - Your place to share nature. iSpot is a website aimed at helping anyone identify anything in nature. Once you've registered, you can add an observation to the website and suggest an identification yourself or see if anyone else can identify it for you.

Catalogue of Life
Animalia, Chordata, Aves, Apodiformes, Apodidae, Apus
Apus pacificus, Apus apus, Apus melba, Apus alexandri, Apus unicolor, Apus niansae, Apus pallidus, Apus barbatus, Apus berliozi, Apus bradfieldi, Apus acuticauda, Apus affinis, Apus nipalensis, Apus horus, Apus caffer, Apus batesi