Sofia Zoo marmoset, and macaques. The predator sector houses big cats, bears and small predators, including lions, tigers, leopards, pumas and brown bears. In January 2011 the zoo received eight Humboldt penguins on loan from Germany. The penguins are on loan for about 18 months, after which they will be returned, with any offspring to stay at the zoo. The zoo has some 1,400 individual birds representing 192 species. Waterbirds are housed in a lake, and Imperial eagles, Griffon vultures, Egyptian vultures and buzzards in a large walk-through aviary. Other species of birds at the zoo include ostriches, Silver pheasants, peacocks, flamingos,
Limburg Zoo in 1985. That year the park had 50 000 extra visitors. The zoo had troubles with the government and animal rights organisations: The city of Genk bought the park in 1999. Demolition of what remained of the zoo began in January 2002. Limburg Zoo The Limburg Zoo, also known as Zwartberg Zoo, was a zoo in the Belgian parish of Zwartberg in the municipality of Genk. The zoo was private property of the Wouters family and did not receive any subsidy or sponsorship. The zoo was known for its large number of animals, which resulted from the internal breeding programme