20 YEARS AGO September–October 2000 September–October 2000 Gloucester's Eared Grebe and Sterling's Tufted Duck were both back for their sixth winter, while Agawam's female Rufous Hummingbird was back at the same feeder for her fourth year in a row. A Greater White-fronted Goose was at Great Meadows NWR in Concord on October 10. A Purple Gallinule was found dead in Westboro in late October. A Boreal Owl was discovered in Boston's Back Bay on the corner of Commonwealth Avenue and Gloucester Street, just across the road from where one had spent the winter of 1996–1997. Gay Head hosted a Townsend's Warbler on September 28 and a Brewer's Blackbird on October 22. A male Mountain Bluebird was in Concord at the end of October. A Northern Wheatear was on the Longmeadow sandbar in the Connecticut River on September 20–21. At least one LeConte's Sparrow was present in Northampton in October. Best sighting: a male Black-throated Gray Warbler , Mount Auburn Cemetery, September 27–October 2. Despite foraging over a wide area, the bird was seen by many birders. 40 YEARS AGO September–October 1980 An out-of-place immature Northern Gannet was observed in Concord and Lincoln on October l6. A Golden Eagle was a surprise at Great Meadows on October 30. Two Yellow Rails were found on Cape Cod: one roadkill at Provincetown and another spotted during high tide at Fort Hill, Eastham. On Nantucket, a Mew Gull of the American race, brachyrhynchus , was found on October 10. The continuing Burrowing Owl on Martha's Vineyard flew into a picture window and was taken to Felix Neck Wildlife Sanctuary where it was treated and released. Manomet banded its first Red-bellied Woodpecker on October 17. A Black-backed Woodpecker was seen for two days in a Needham yard. A Say's Phoebe was on Nantucket, September 24. Loggerhead Shrikes were found on Monomoy, Essex and Salisbury, the latter appearing on September 13 and staying for over two months. Brewer's Blackbirds were found in South Peabody and Truro. A Lark Bunting was in Newburyport on September 20, single LeConte's Sparrows were on Nantucket and Monomoy, and a Henslow's Sparrow was found in Truro, mid-October. Best sightings: the appearance of two Fork-tailed Flycatchers , at Chatham from September 22–October 4, and at Orleans from September 27–October 7 drew birders from across the continent.