Occurrence of Red-footed Booby and Black Tern after Typhoon

Abstract

The following two speices were observed after a summer typhoon in 1975.1. An immature Red-footed Booby, Sula sula rubripes, was found exhausted at Yokohama Port, Tokyo Bay on 27th August after the typhoon No. 6 (Fig. 1). This is the third record of this species in Honshu.2. Two immature Black Terns, Sterna nigra, were discovered at the estuary of Sagami River, Sagami Bay on 24th August (Fig. 2). This is the second record of this species in Japan. The birds were seen with two Roseate Terns, Sterna dougallii, and many Little Terns, Sterna albifrons, and Common Terns, Sterna hirundo. Other interesting sea-birds collected or seeing at the same time (23rd August) in the estuary of Sagami River, were an immature Bonin Petrel, Pterodroma hypoleuca hypoleuca, and an immature Sooty Tern, Sterna fuscata. At the time of the observations there were strong southerly winds in Sagami Bay.