When and where to? On the track of bird movements

Individual marking and tracking of birds with inscripted rings at the bird's legs, radio transmitters or other methods is used for the study of the success of individual strategies, demographic benchmarks, the study of bird migration with all it's facetes and the role of birds as vectors for diseases, the long term monitoring of bird populations, the building of survival models, the study of the reaction of birds to climate change and finally the provision of basic data for species conservation.