Fascinating to watch a kestrel pair prepare for the mating season.  This pair has established their territory and remain regularly perched close to the nest.  The female has been spending most of her time perched on the opening to the nest cavity.  She scans the area for possible prey and potential threats in the neighborhood.

A few more photos posted online at link below:

http://www.pbase.com/birdshots/image/142630697