Authors:

You can see that there is scarcely an observable fact unworthy of mention in your notes, and yet you could easily spend more time scribbling than watching, and that would defeat the purpose. So be selective, don't be compulsive, and enjoy your note-taking.

Robert Michael Pyle, Roger Tory Peterson Institute (1992). “Handbook for Butterfly Watchers”, p.93, Houghton Mifflin Harcourt
You can see that there is scarcely an observable fact unworthy of mention in your notes, and yet you could easily spend more time scribbling than watching, and that would defeat the purpose. So be selective, don't be