SATELLITE TRACKING OF BAR-HEADED GEESE ANSERINDICUS WINTERING IN UTTAR PRADESH, INDIA

摘要

In 2010,4 Bar-headed Geese were captured and fitted with satellite transmitters at Sur Sarovar Bird Sanctuary in Uttar Pradesh, India, to examine their migration and distribution. The individuals fitted with Platform Transmitter Terminal (PTT) 99072,99073, 99075 and 99076 spent a total of 30 days, 16 days, 36 days and 23 days respectively, in their wintering range after deployment of PTTs. During wintering, Goose 99073 and 99076 ranged within an area of 48.65 sq. km and 124.37 sq. km. However, Goose99072 and 99075 ranged within an area of 106.76 sq. km and 149.84 sq. km. They migrated towards their breeding grounds between March 25, and April 12, 2010. During their migration, they flew over the Himalaya, a significant barrier to migration for mostbirds. The Geese equipped with PTT 99072,99073,99075 and 99076 covered a total distance of 877 km, 1,005 km, 807 km and 1,305 km respectively. All 4 birds flew to the breeding areas on the Tibetan Plateau, and stayed there for a period of 153-222 days.Three Geese (99072,99073 and 99076) made a stopover over Xizang province for 1-2 days. However, Goose 99075 directly flew to the breeding ground. Goose 99073 moved within an area of 3,155 sq. km and used three focal areas of 438 sq. km, 457 sq. km and 510 sq. km. Among the four geese, Goose 99076 established itself in the northernmost part. It moved over an area of 10,866.77 sq. km and used two focal areas of 1,168 and 3,368 sq. km size intensively. Goose 99072 moved over an area of 5,263 sq. km and used four focal areas of 75.19 sq. km, 389.9 sq. km, 253.25 sq. km and 236.21 sq. km. Goose 99075 ranged within an area of 13,932 sq. km and intensively moved in three focal areas of 690.18 sq. km, 2,214.68 sq. km and 852.21 sq. km. Geese 99076, 99072, 99075 and 99073 ascended to 5,520, 5,090, 4,790 and 4,920 m above msl respectively, while crossing the Himalaya.