This video says about itself:
Striving to save the Red Breasted Goose
2 November 2012
Euronews coverage of the first ever tagging of Red-breasted geese with GPS transmitters, a scientific experiment within the LIFE+ Safe Ground for Redbreasts project, carried out in January 2011 in NE Bulgaria.
By Elodie Cantaloube, Fri, 25/07/2014 – 13:38
Let me introduce you to Decebal and Darkos, two special Red-breasted Geese that were selected by SOR (BirdLife in Romania) to carry a satellite transmitter to provide conservationists with information on their migratory journey.
Red-breasted Goose, is a distinct red, black and white bird that breeds in the Taymyr Peninsula of Siberia and is one of the most beautiful geese in the world. It’s also one of the rarest species of geese, and has a small, rapidly declining population. It’s threatened by illegal killing along its migration route and by changes to habitats and is listed as Endangered by BirdLife on behalf of the IUCN Red List.
SOR has been working intensively to protect this species.
The project “Save Ground for Redbreasts” aims to increase our knowledge of the route the geese take from the wintering areas in Bulgaria and Romania to the breeding grounds in Arctic, through satellite-tracking of a pair of geese: Decebal and Darko. The two adult male red-breasted geese were tagged with satellite transmitters, after being caught in mid-February 2014, near Durankulak Lake (Bulgaria).
Fortunately, Decebal reached Siberia on the 14 of June, 95 days after his departure. The goose arrived at his breeding grounds in the vicinity of Lake Kuchumka, 8922 kilometres away from his departure point.
The birds’ beautiful journey through Europe up to the northern part of Eurasia can be followed in this website, where SOR/BirdLife Romania uploads every 2-3 days his new positions.