Cliff Swallows Nesting in Glorieta, New Mexico

In summer, Cliff Swallows nest on building walls and cliffs by moulding their saliva and mud together and sticking it to the wall. Here is a video I made of a colony of swallows nesting on the side of a building in Glorieta, New Mexico. I filmed this with my Canon EOS Rebel T6 and my GoPro Hero 5 Session.