1/26/25: Late Autumn Sulphurs

Late autumn isn't usually a time associated with butterflies, yet a few hardy species persist despite chill and frost.
Late autumn isn't usually a time associated with butterflies, yet a few hardy species persist despite chill and frost.
The Observatory’s work falls into two main categories: data collection and data preservation. Whether it’s notes in a notebook or physical specimens, how data is stored and preserved requires careful planning so that the information will be accessible and usable…