The Potomac Valley Audubon Society will sponsor a bird walk at its Eidolon Nature Preserve in Morgan County on Sunday, May 4.

The walk will begin at 7:30 a.m. It will be free, and anyone with an interest is invited to attend. No pre-registration is required.

The walk will be led by local birding experts Jon Boone and Janet Ardam.

It should offer an opportunity to get a good look at a variety of migrating and year-round birds before trees are in full foliage.

In particular, it will offer a chance to see the rare Cerulean Warbler, a species of concern that can be found in considerable numbers at Eidolon at this time of year.

Participants should wear sturdy walking shoes or boots, dress appropriately for the prevailing weather and bring water and bug spray.

For more information and directions to the preserve go to the PVAS website at www.potomacaudubon.org. Or contact the Nature Niche store in Berkeley Springs at 304-258-0992 or natureniche@earthlink.net.

This walk is part of the Potomac Valley Audubon Society’s ten-day recognition of the 2014 International Migratory Birding Day (IMBD) celebration.

The theme for this year’s IMBD is “Why Birds Matter.”