A review of semipalmated sandpiper records took place in the 1970s, resulting in seven of the twelve records being rejected. A review of black-headed wagtail records was initiated in 1983. The results were published in 1994 and 1995, and nine previously accepted records were judged to be unsound, due to possible confusion with grey-headed wagtail. A review of rufous turtle dove records took place in 1994, and concluded that three of the eight accepted records should no longer stand. A review of lesser kestrel records, begun in 1994, and completed in 1995, concluded that six accepted records of this species should no longer be regarded as acceptable. Five of the six were from autumn, whereas the overwhelming majority of records the committee continued to accept are from the spring/summer period. All 24 spring records of Siberian stonechat were reconsidered in 2002–04, in the light of new information on the variability in appearance of European stonechats in spring; the committee decided that all but five should remain accepted. In 2003, the committee revised its assessment criteria for male pine buntings, redefining some birds previously considered hybrids as acceptable, but requiring an overall greater level of precision in descriptions, and reviewed past records in the light of these changes.