As mentioned, it was April, the new Panasonic Leica 100-400 mm lens was not yet available (at least in Switzerland), and we were about to go to the island of Amrum - a birders paradise at that time of year. Would't it have been great to try out the 100-400 mm lens for bird photography? So I asked Panasonic if they already had that lens and if I could try it out for two weeks. Shortly after, a package with an early version of the lens arrived.
Bird photography is a kind of childhood dream of mine, but in reality I have never seriously delved into this discipline and therefore I am not really used to follow quickly moving birds, let alone capture flying birds. Nevertheless, we carried the lens along on all our outings and photographed whatever birds we encountered (and that did not immediately fly away). Most of the time, a tripod was used, a few shots were taken handheld (mostly of the birds in flight), and sometimes even the children tried their luck pursuing the tiny and incredibly swift little stints on the beach.
I am glad that I had the opportunity to test this great lens and hope these personal experiences are helpful to some. More "Amrum photographs" taken with the Panasonic Leica 100-400 mm lens are found in the animal gallery.