On the evening of March 16, a porcupine climbed up into the nest! The female was away at the time, possibly spooked  off by the vibration of the porupine as it slowly climbed the tree. Porky looked around, then had a short nap before moving on. The male owl then came onto the nest and inspected the situation. He seemed agitated but left after a few moments. The female didn't reappear until about noon the next day, but she didn't seem to be at all upset about the unusual night guest. Owls commence incubating after the first egg is laid, so she is now into this month-long segment of the nesting process. We are interested in tracking the nest activity, especially if/when she ever leaves the nest and how often the male brings her food. If you happen to see anything interesting, please note it down and email us.