Who's back? Can you see them? What do they sound like? College of the Atlantic's George B. Dorr Museum of Natural History continues its spring series of workshops on Saturday, May 3 from 10 a.m. to noon with Early Birds, a bird walk around campus. Students in ornithology and ecology will be leading this birding session. Join them to see who is around, and to gain some expertise in recognizing birds by sight and sound.

Gregory Smith, a second-year student at the college, will be leading the walk with COA student Taj Schottland. Smith, who hails from Queens, NY, worked with ornithological experts at the Bronx Zoo for four years. Since coming to COA, he's been doing a lot of walking around Acadia National Park to learn how the birds of Maine differ from those of New York and Long Island.

Admission is $5 for adults, $2 for children and museum members. Bring binoculars if you have them. Pre-registration is appreciated, call 288-5395. For more information, call Lynn Havsall at the Dorr Museum at 288-5015 ext. 238.

Additional workshops are as follows:
§ Saturday, May 10 from 10 to 11:30 a.m.: Meres de la mer - Moms of the Sea
A day before Mother's Day, learn about the great variety of maternal strategies in the sea, from free spawning sand dollars to egg brooding sea stars. Wear boots for low tide walking. $5 adults, $2 children and museum members.

§ Saturday, May 17 from 9 to 11 a.m.: Warbler Watching
Tiny colorful birds are winging their way north from the tropics. Learn about our neotropical migrant warblers and how to recognize them by sight and sound. $5 adults, $2 children and museum members.

§ Saturday, May 24 from 1 to 2 p.m.: Wild Edible Plants
Enjoy a leisurely stroll around the COA campus while nibbling, tasting and collecting some edible wild plants-then share a few wild recipes. $5 adults, $2 children and museum members.

§ Friday, May 30 from 8 to 9:30 p.m.: Jewels of the Night: Giant Silkmoths
Gather round the black light and discover secrets of luna, cecropia and polyphemus moths that are on the wing on spring nights. $5 adults, $2 children and museum members.