Old Laxenburg Castle became a Habsburg possession in 1333. After 1780, the castle garden was rearranged as an English landscape garden. It contains an artificial pond with several partly not accessible islands. One island accommodates a huge colony of Grey Heron .
There are a lot of old trees and several species of woodpecker can easily be found. Most resident species have short flight distances. Common are Middle Spotted Woodpecker, Great Spotted Woodpecker, Eurasian Green Woodpecker, Black Woodpecker and Lesser Spotted Woodpecker . But also Grey-headed Woodpecker occurs and even Syrian Woodpecker and White-backed Woodpecker were allready observed. Along with all those woodpeckers comes a variety of cavity-nesting birds as for instance Tits and Common Starling. In two groups of old plane trees exist quite sizeable breeding-colonies of Eurasian Jackdaw. Other regularly occuring species during breeding season are Common Cuckoo, Stock Dove and Golden Oriole.
Year round Goosander, Grey Heron, Great Cormorant andCommon Kingfisher can be observed.
During winter the park gives home to Great Egret, Tufted Duck, Long-eared Owl and a lot of singing birds such as different species of thrushes or finches.
You can get there by bus from Vienna or by car. There are free parking lots just outside the main entrance. During working-hours a small entrance-fee is to be paid, but the park is accessible 24/7. Due to the Corona-virus the park is currently closed (22 April 2020).