Here are listed top sites about Butterfly Watching: About Butterfly Watching Butterfly watching (also called butterflying) is a hobby concerned with the observation and study of butterflies. It is growing in popularity, and there are clubs, handbooks, checklists, and even festivals devoted to the activity, just as there are for birding. The Fourth of July and Canada Day butterfly count, an annual census of species by butterfly watchers throughout North America, is an example of citizen science. The United Kingdom probably has more butterfly watchers per head of population than any other country since membership of the organisations involved is far higher. The millennium atlas survey in the UK has collected more records of butterflies than any other survey and the data have proved useful for the development of research.