Monarchs have used the hilltop eucalyptus in winter for many years. Trends, and whether this is good habitat all winter, are unclear. Dated observations, with photos of clusters and/or estimates of numbers, plus locations of trees used, might help. This could become a separate project. Anyone want to run it?
If you think this observation is inaccurate, please add an ID, participate in the quality assessment above, or describe the inaccuracy in a comment.