Ashfield Park is a haven for birds. There are always lots of rainbow lorikeets. There are a few magpies that live near GZ. A litte further away you can find a pair of plovers. Currawongs, kookaburras, pidgeons, swallows, noisy miners. Lots of birds.
It's a great park.
Maybe check out the Mary Poppins statue in the playground while you're here.