This was an early morning shot and the male, in the hole, had been evidently brooding with the chicks for the night. He had not left the nest until the female showed up to feed the chicks. Both would enter the hole, spend about 2 minutes, and then leave to search the area for insects. They would then return after about 20 minutes of gathering food. They never had anything in their beaks so I assume they would regurgitate in order to deliver food to the chicks during this first week after hatching.