This is the first supplement to the previous published four-part series on avian longevities (Clapp et al. 1982, 1983; Klimkiewicz et al. 1983; Klimkiewicz and Futcher 1987). R ecords processed in the Bird Banding Laboratory through August 1988 are included, as well as several corrections to the original series. One hundred-seven of the 147 entries in this supplement are new longevity records for species or forms listed previously. Another 37 entries represent taxa not listed before, and the remaining three records correct previous listings that were in error.