Can you get closer? They could be ants, especially if you recently had a bit of rain.

Pretty sure they aren't termites. They look very anty to me.

Note that winged termites wings greatly overlap the abdomen and are usually at least twice as long as the body. The wings also fall off the body very readily; just handling one will cause this. The antennae on yours also appear to have a joint, like an ant's antennae.

http://www.epestsupply.com/termite_identification.php#.WfvPTrgYc6E