Halfway between Melbourne and Geelong is a Regional Park with high granite peaks and over 50km of Mountain Bike riding trails. It is also a good spot to bush walk and find a reasonable selection of uncommon woodlands birds. It can be dry and hot at times and there are a few dams in the park near the entrance that usually have water and so are good spots to explore for birds. There is a 12 km dirt road (the Great Circle Drive) that winds around the park taking in most of the main habitats.
There are several large groups of White Winged Choughs (chuffs) in the You Yangs. They are a social species living in extended family groups. They are generally hard to sneak up on as they post guards in the surrounding trees as the main group feeds on the ground. I took some time and watched this family and slowly moved closer. They have very distinctive calls and different alarms for a variety of threats.