Study of Migrations of the Streaked Shearwater Calonectris leucomelas (Temminick, 1836) Using GPS-GSM
Karamzin Island (Peter the Great Bay, Sea of Japan) is the only nesting point of streaked shearwaters in the Russian Federation. In order to understand and discover their distribution patterns along the Sea of Japan during the nesting period, as well as to find out their migration routes to wintering grounds, we fixed 10 WT-300 trackers (GPS-GSM, KoEco Inc.) on 10 adult streaked shearwaters. During the observation period (July 5, 2016 through January 7, 2017), 4812 locations were registered. The analysis of the data obtained exposed the main feeding points of the colony, located in the Peter the Great Bay along the 50-m isobath. It was found that a part of the nesting birds from Karamzin Island winter near the coast of the Philippine Islands, which is considerably farther to the north of the main wintering areas of streaked shearwaters nesting in the coastal waters of Japan.