ONSET — With temperatures in the 40s and the sun shining, Sunday made for a pretty good walk on North Water Street Beach.

“It’s supposed to celebrate spring,” Amy Pettigrew said of the afternoon stroll. Pettigrew is an AmeriCorps Service Member volunteering with the Buzzards Bay Coalition and the Wareham Land Trust.

Sunday afternoon wrapped up the “Walking Through Winter” series of seven walks beginning in December focusing on local wildlife which Pettigrew, 26, from Wareham, has facilitated.

Unfortunately, it appears the winter weather isn’t over as the National Weather Service issued a Winter Storm Watch about 4 p.m. Sunday for Monday evening through Tuesday evening. It includes heavy snow with possible total snow accumulations of around 6-12 inches, with localized amounts up to 18 inches for southeastern Massachusetts and Rhode Island, the NWS said.

The walk was planned for low tide so the nearly 20 participants could pick up items on the beach. Pettigrew scanned the sand and described to the group what she held. At one point it was most of a channeled whelk shell and another, a periwinkle shell.

When the periwinkle shells look like a small hole has been drilled into them, they’ve likely been turned into a meal for the moon snail, Pettigrew said.

Other findings could include different types of clams with hard or soft shells, she told the group.

Generally speaking, Pettigrew said beach grass could help prevent erosion since without it, “there’s nothing holding that sand in place.”

One woman asked for a bucket to collect glass she was picking up off of the beach to dispose of.

Another woman, Carleen Loper, pointed toward an active Osprey nest on top of a small building along a nearby bridge. Previously, the nests that were built on telephone polls were taken down, she said. As a volunteer with the Wareham Land Trust, she's the steward of the beach meaning she needs to check on it once a year to make sure there's no encroachment or safety issues.

Amanda Cobb said she’s been on a lot of similar walks which she described as “fun and informative” and this one was particularly local to her. “I think it’s important to be aware of the environment,” she said.