Biologist Maarten Loonen while diving in Zeeland, collecting crabs and other marine organisms for display in an aquarium during a weekend course on the marine life of the Dutch estuaries.
André Eijkenaar of the Dutch Barn Owl Working Group inspects a nest site in East Groningen. Thanks to the efforts of the Working Group, the number of breeding pairs in the Netherlands increased from around a hundred in the late seventies to some three thousand today.
