Nest of White-breasted Kingfisher

While walking to my car parked at the open space near the Raub Magistrate building, I noticed Kingfisher flew in and out of the plastic tunnel at the retaining wall.
I did carry a camera, so I rushed back home and this are a few pictures that I got. Waited for nearly one hour in the hot afternoon sun trying to capture the King in his nest, but he didn't show up. Tomorrow I will carry a camera and try again..

That plastic is a weep hole that suppose to drain water, but it is dry in the now hot dry season.
The nest is at about 7 feet high and very near the road that I parked my car daily.