There are four data tables (csv documents) provided here which are formatted according to tidy data principles. We identified sites centered on known murrelet nest trees (nest sites) and on randomly selected trees (control sites) and the first table contains variables that vary at the site level. Each site had up to three stations where occupancy surveys were collected, so the second table contains variables varying at the station level. Each station was surveyed multiple times, and the third table contains variables varying at the survey level. Lastly, we had a camera trained on the nests at our active nest sites and the fourth table contains one row for every recorded action taken by an adult or nestling.