<p><br /> Parrots in Australia's Northern Territory are appearing a little wobbly on their legs, showing signs of being drunk and even falling off of trees leaving wildlife experts puzzled and alarmed.<br /> </p><p><br /> The mystery illness targeting the exotic bird species has found many of them staggering around and in some cases, even passed-out, around the city of Darwin.<br /> </p><p><br /> Displaying almost human-like behaviour, the birds affected by the illness are often cranky and in need of a good rest before sobering up.<br /> </p><p><br /> "They certainly appeared to be hungover for quite a long time and have a headache and seem quiet disoriented," said Ark Animal Hospital veterinarian Stephen Cutter.<br /> </p><p><br /> Darwin's Ark Animal Hospital has been treating the birds affected by the mystery illness and it is caring for about 30 birds at a time. About eight arriving each day after being scooped up from lawns and roadsides.<br /> </p><p><br /> "They stagger around, they don't have quite the same co-ordination, a bit like someone who has had too much to drink," said Veterinary nurse, Lisa Hansen.<br /> </p><p><br /> No one appears to know what is causing the ailment.<br /> </p>
