20 YEARS AGO September–October 1997 A Swainson's Hawk that had spent most of the summer at Provincetown stayed until at least October 11. The state's seventh record of MacGillivray's Warbler was banded at Manomet. Evening Grosbeaks were reported from 21 locations, including a flock of 12 in Lexington. Best sighting: Long-billed Curlew , Nauset Marsh, September 8. This is last (i.e. most recent) record of this species for Massachusetts. 40 YEARS AGO September–October 1977 Nine hundred plus Red Knot were seen throughout the state in September, including 500 at Scituate and a pure albino at Sandy Neck. Barn Owls were seen at Hingham (September) and Monomoy (October). Rarities included a minor irruption of Say's Phoebes (four in October), a Lark Bunting in South Peabody (September), Loggerhead Shrikes (one September, three October), and six Brewer's Blackbirds in three locations. At Manomet, 26 Yellow-breasted Chats were banded in September. Best sighting: Phainopepla , Tuckernuck Island, October 7. This was the second of only two state records, the first being on Nantucket in February 1973.