KermadeC Petrel One bird, a dark phase, was seen on 20 April. This is the first spring (March-June) sighting of this species in the area. Dark-rumped Petrel Three were seen in April, all under good light conditions. Two were in the southeast corner and the third was 200 miles north of the high Hawaiian Islands. Juan Fernandez Petrel All of the 21 birds seen this month were in the southeastern corner. Most had splotchy plumage, indicating the beginning of molt in this species. Numbers seen were consistent with the low totals noted for Jan-April in both 1964 and 1965. Herald's Petrel One bird observed at close range but in poor light on 19 April may have been this species. Cook's Petrel One was seen on 24 April toward the southeastern corner of the area. A substantial increase over the January-April low is expected in May. Bonin Island Petrel One bird was seen in good light on 28 April, 250 miles north of the high Hawaiian Islands. This species occurs only rarely in the BCF area. The possibility of confusion with the similar Cook's Petrel make positive identification difficult under any other than optimum observation conditions.