Recent bird sightings as reported to the Massachusetts Audubon Society:

►After record-breaking mild weather two weeks ago, last week saw a return to more seasonal conditions. Nonetheless, signs of spring were still obvious by the increased presence of several waterfowl species, the return of great blue herons to their nesting sites, the noisy displays of red-shouldered hawks, American woodcocks buzzing at dusk at a number of locations, and obvious numbers of small groups of red-winged blackbirds and common grackles.

►Cape Cod: A dedicated seabird survey of the Stellwagen Bank Marine Sanctuary on Tuesday was highlighted by 105 dovekies, 31 common murres, two thick-billed murres, 107 razorbills, an Atlantic puffin, 48 black-legged kittiwakes, and six Iceland gulls.

Plum Island: Reports from the Parker River National Wildlife Refuge included 75 brant, 70 gadwalls, 12 northern pintails, a king eider, 150 long-tailed ducks, a rough-legged hawk, a thick-billed murre, two snowy owls, a peregrine falcon, and 18 snow buntings.

Nahant: Two thick-billed murres, a peregrine falcon, and a snowy owl were reported.

Winthrop: In Fort Heath Park there were two snow geese, a king eider, a thick-billed murre, and a black guillemot.

►Concord: At Great Meadows National Wildlife Refuge there was a report of 25 wood ducks, five northern pintails, 18 ring-necked ducks, 12 common goldeneyes, seven hooded mergansers, and a mixed flock of 100 red-winged blackbirds and common grackles.

►Needham: Sightings included two red-shouldered hawks, a common raven, a singing brown creeper, 22 cedar waxwings, and a fox sparrow.

►Cohasset: Noted were a king eider, a Barrow’s goldeneye, and a thick-billed murre.

►Miscellaneous: Reports featured four snow geese and six eastern meadowlarks at Daniel Webster Sanctuary in Marshfield; another snow goose in Concord; single greater white-fronted geese at Worcester County Memorial Park in Paxton, the Arlington Reservoir in Arlington, and at the School Street fields in Acton; a continuing tufted duck at Nantucket; a barrow’s goldeneye at Lake Massapoag in Sharon; and single early tree swallows from several localities.

For more information about bird sightings or to report sightings, call the Massachusetts Audubon Society at 781-259-8805 or go towww.mass-audubon.org.