Quick translation of the article:
The case is about Ouwehands' two Rufous hornbills (Buceros hydrocorax). These animals have been in Ouwehands since 2009, but according to the ministry this wasn't done without the proper documents.
Because of this, the ministry claims that it now cannot be certain that the Rufous hornbills were acquired legally, and it may be possible that the animals were wild-caught (possibly without Ouwehands' knowledge).
According to Ouwehands, the animals arrived in 2009 with rings around their legs, which is required for all endangered animals. Which would prove that the animals were acquired legally and must have originated from a breeder.
Ouwehands' lawyer claims that in 2009, a ring was all that was required to show that the animals were acquired legally, but the ministry disagrees and says that this wasn't adequate even in 2009.
The ministry is threatening to confiscate the animals, to the great disappointment to Ouwehands. Ouwehands says they've taken very good care of these animals for the past 15 years, and confiscating or moving the animals will cause the animals a great deal of stress, especially since one of the suffers from a cataract.
According to Zootierliste, Ouwehands has received the animals from Avifauna...