Žabakor, Nature reserve in Březina, Czech Republic.

Žabakor is a nature reserve of 80.38 hectares in the Český ráj protected landscape area, centred on the Žabakor fishpond fed by the Žehrovka stream, with the smaller Oběšenec pond in a separate section. The pond lies at 240 m between Březina, Doubrava and Žďár, surrounded by flat wetlands and meadows, with the Příhrazské skály rising a kilometre to the south.

The pond Žabakor, formerly called Žabykor, was probably founded in the 16th century and is the largest pond in the Český ráj protected landscape area; the circumstances of its creation are unknown. It was drained for long periods at least twice, in the second half of the 18th century and at the end of the 19th century, and was refilled in 1899. Since 1998 it has been a nature reserve together with the smaller neighbouring pond Oběšenec.

The pond's name, formerly written Žabykor, refers to frogs. The Rohan family, owners of the Svijanský estate, used the pond for boating and duck hunting and had a park laid out on the main island, Velký Hladov, once reachable by a raised causeway that vanished in the 1960s.

Access is provided along designated paths that allow visitors to experience the landscape while protecting the habitats. Visitors should wear sturdy shoes and be prepared for wet conditions, especially after rain.

In 1998 an adult female white-tailed eagle was shot here by hunters during a duck hunt; the species had been seen increasingly since 1961 and first nested in 2000. The reserve also holds two threatened bivalves, Pisidium amnicum and Sphaerium nucleus, among 25 recorded water mollusc species.