Early this spring a pair of Brown-headed Nuthatches excavated a nesting cavity in a Maple snag (dead tree) in our backyard. The female has been sitting on eggs for over a week now. The male diligently brings her food about twice an hour and every few hours she takes a short break from incubating her clutch.
Here is some edited video footage I captured of the male bringing the female food and the last part is the female taking a look outside of their nesting cavity.