Hornsby Heights is a suburb of Northern Sydney, in the state of New South Wales, Australia. Hornsby Heights is located 26 kilometres north-west of the Sydney central business district, in the local government area of Hornsby Shire. The suburb is often referred to as part of the Upper North Shore. Bird and animal life abound in the suburb, with many species being regular visitors to resident's homes. Kangaroos, wallabies, common ringtail possums and echidnas abound in the mammalian world, while rainbow lorikeets, noisy miners and sulphur-crested cockatoos are some of the most common birds.