While this winter’s snow flew and icicles formed, more vibrant times were in the works. At Rockland’s Maine Coastal Islands National Wildlife Refuge Visitor Center, Mark McCollough, an Orono-based biologist for the U.S. Fish and Wildlife Service Ecological Services, has been spending a couple of days most weeks working on a mural of Petit Manan Island. At Rockport’s Center for Maine Contemporary Art, aerosol artists (Mike) Rich, KEO (Blake Lethem) and Vyalone (Vyal Reyes) spent the last weekend of winter creating a Dunk The Junk mural that was unveiled Sunday afternoon, March 15.

The Friends of Maine’s Seabird Islands installation pairs McCollough’s artwork — which also may be appreciated on the state’s chickadee and loon license plates — with ceramic reliefs by Franklin artist Kim Walker. Her work, dedicated to the memory of the Friends’ late board member Patti Reilly, depicts species dwelling under the waterline. McCullough is looking forward to his final weeks of painting, when he will be filling in the scene with birds, lots of them, including on the hallway walls, flying towards the island mural.

“We want to give people a sense of visiting a seabird island, which is amazing … it’s a beehive of activity,” said McCollough, who has been to Petit Manan a number of times.

A public celebration of the mural’s completion is tentatively scheduled for a May 2 open house at the center, located at the Water Street “point” in Rockland’s South End. The Maine Coastal Islands National Wildlife Refuge is one of 20 finalists in USA Today’s Best National Wildlife Refuge contest; to vote, visit 10best.com. For more information about the organization, visit fws.gov/refuge/maine_coastal_islands.

McCollough’s mural has been in the works in some way for more than a year and has required many hours of research. The CMCA mural came into being via a very different process, although hardly spur-of-the-moment. Rich, KEO and Vyalone have executed a number of murals working the Sodatron — a glowering in-can-nation of nutritional dead-end soda — theme. But the new “Sodatron Bombs” mural was executed the day before its unveiling … and unlike most of the street art that inspires the medium, it will remain safely in place for a specified time. It also will live on as artwork for a soon-to-be-released hip-hop track with C Rayz Walz, M1, General Steele and DJ Evil Dee.

Rich lives in Portland, while Lethem and Reye hail from Brooklyn, N.Y., and Los Angeles, respectively. This is the second time Rich and fellow artists have been brought to the Midcoast in support of Dunk The Junk, a nonprofit dedicated to helping defeat childhood obesity and improving the eating habits and health of children and adults. Established by local pediatrician Kevin Strong, Dunk The Junk reaches out to young people via graffiti/street art and hip-hop.

The Dunk The Junk mural may be seen through April 4 at CMCA, 162 Russell Ave., Rockport, open this time of year by chance or appointment (236-2875); staff are usually on site weekdays. For more information about Strong’s efforts, visit dunkthejunk.org.