WELLS — Want to learn more about the many sparrow species that breed in and migrate through Maine? Want to know the difference between a sparrow and a finch? How can one bird be both a bunting and a sparrow? Why are longspurs no longer sparrows?

Answers to these and more questions will be answered at a sparrow workshop with Louis Bevier on Saturday, Oct. 25 from 8 a.m. to 3 p.m., sponsored by York County Audubon.

Often skulking, elusive and confusingly similar, sparrows can make any birder prefer fall wood-warblers. As part of the workshop, participants will learn how to find and observe sparrows in their preferred habitat through classroom and field time. Participants will also learn useful foraging behaviors, flight characteristics, and vocalizations helpful for identification and appreciation of Maine’s sparrows. The workshop will feature some of the rare species that have turned up in Maine.

This workshop will be led by well-known Maine birder Louis Bevier. Since the 1960s, birds have drawn him to explore most of North and South America, leading to months at sea off the coasts of Alaska and California, back country surveys in the high Sierra, plant and bird expeditions to several countries, and many other adventures. He has worked as a tour guide for Field Guides, as an editor for The Birds of North America series, as associate editor for the journal North American Birds, and he is chair of the Maine Bird Records Committee.

The workshop will be held at the Wells Reserve at Laudholm. There will be a break for lunch, and participants need to bring their own, after which the group will head to Mile Road to try for saltmarsh or Nelson’s sparrows, or anything else, at high tide, and then continue on to Beach Plum Farm and possibly Ogunquit Beach.

The cost is $10 per person, payable by check or cash at the workshop. Space is limited and advance reservations are required. Register online at yorkcountyaudubon.org.