Decent size
In recent years the technology of satellite telemetry has developed a lot, making the tools increasingly effective and long-lasting. At least if they are of a decent size like those used for ducks.
Life and paths
Thanks to this – ACMA – Association of Aquatic Migratory Hunters, a sector of the Hunting Federation – writes in a note – we are now able to follow the life and paths of the birds more and more often for several years.
Goodness of the instrumentation
In the images you will notice how four coots have been reporting for almost 2 years and a mallard for almost 3 years. In addition to the goodness of the equipment, all of this also shows us the fact that the animals tolerate the presence of these foreign objects without problems (source: ACMA).