Currently, the bird collection comprises about 80,000 - 85,000 individuals, most of them (76,000) are specimens, the rest are mounted preparations. The collection is complemented by skeletons and specimens in alcohol (ca. 3,000). In addition, the egg collection encompasses 60,000 single objects including ca. 1,700 nests. In 2003, we began to build up a collection of tissue samples which is continuously growing.
The most precious specimens are types (holotypes, syntypes and paratypes) of more than 300 taxa. The oldest exhibit is a little display cabinet from the year 1793 and contains a Fieldfare. The oldest series of exhibits belongs to the collection of the "bird pastor" Christian Ludwig Brehm and dates back to the year 1808.
The geographical focuses of the collection are the Palearctic and Afrotropical region. Granivorous passerines (estrildid finches, finches and weavers) as well as hummingbirds are numerically the most represented groups in our collection.