1. Ultra-Long-Distance Migration of the Common Cuckoo (Cuculus canorus Cuculiformes, Cuculidae) from Kamchatka to Namibia.
- Author
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Sokolov, L. V., Sinelshchikova, A. Yu., and Markovets, M. Yu.
- Subjects
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BIRD migration , *SATELLITE telemetry , *BODIES of water , *SPRING , *AUTUMN , *WINTER - Abstract
The application of high-tech methods for tracking birds, primarily satellite telemetry, has made it possible in a relatively short time to reveal the real migratory routes and wintering areas for many bird species. In the common cuckoo, the breeding range of which extends over a vast territory from Portugal to Kamchatka, the migratory routes and wintering grounds have been studied well for a number of European populations, while the migration of Asian populations of this species is still not as well studied. In this work, we analyze satellite telemetry data obtained from four adult males of the common cuckoo caught in early June 2017 during the nesting period on the Kamchatka Peninsula near the town of Yelizovo. The autumn migration of these birds started in August to early September. They crossed the Sea of Okhotsk (more than 1000 km) and, without staying for a long time in the Khabarovsk krai, stopped in China (Sichuan, Hebei, and Heilongjiang provinces), where they remained for a long time, from 32 to 52 days, moving around this country until October to November. In southern China, all three surviving males changed their southwesterly direction of migration to almost westerly and flew crossing Myanmar and Bangladesh to India, where they stopped over for 24–34 days until November 10th or 29th. Then the birds crossed the Arabian Sea in 2–3 days overcoming the huge body of water of about 3000 km in width without stopping to land on the African continent (Somalia). Further migration of the Kamchatka cuckoos passed through the countries of East Africa such as Ethiopia, Kenya, Tanzania, Malawi, Zambia, or Zimbabwe, where they stayed from two to 11 days. Finally, all three individuals reached wintering areas in December, first in Botswana, then in Namibia. Thus, the duration of the autumn migration of Kamchatka cuckoos varied from 106 to 123 days. During this time, they overcame a record distance of 17 340 km for land birds. The spring migration of two birds started on April 19th or 26th of the next year. They flew back using a similar route as in the autumn. One individual crossed the Arabian Sea in early May, the other from May 20th to 22nd. Having reached India, one bird almost the same day continued to Bangladesh and then to China. The other one stayed on the Hindustan Peninsula for 11 days, this being much shorter than in autumn. Unfortunately, only one male reached the nesting area in Kamchatka (May 31st). Apparently, the other one either died or lost his transmitter in China. The surviving male returned to his former nesting area with high accuracy, and his transmitter emitted signals until July 10th. The spring migration took the birds much less time (42 days) than in autumn (106–123 days). Thus, we recorded an ultra-long total distance of autumn and spring migration for a land bird species of almost 34 000 km from Kamchatka to Namibia and back. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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