Wisbroek Micro 40 is a complete (floating) daily food especially for young fish-eating birds, such as waterfowl, grebes, terns and other sea and shore birds. During the unique extrusion process, the high diversity of raw materials under high pressure to a delicious crunchy pellet formed. Each pellet contains all the nutrients your fish-eating bird needs to stay in good condition. Apart from the pellets, no extra additions are needed in the feed.