What's an air creature?

[The Spectrum Rider]

A cleric with the Air domain can rebuke or command "air creatures." Does that mean air elementals, or does it mean any creature with the (air) subtype - including some dragons? Or does it mean something in between?

The Spectrum Rider

 

[Tellerve]

I believe the air subtype.

Tellerve

 

[Grazzt]

Creatures with the "Air" subtype AFAIK.