New Quaker Parrot's first day home

He's perching in the bottom corner of the cage hesitating to move around at all. Occasional growling/purr noises are made. Bird is untamed and scared of my hands. Any advice?

Welcome!!! Yeah another Quaker parrot!! Congratulations!!
It takes time, lots of treats.
How old is your bird? Any background info? Have you had a parrot before? There is a tips on bonding page. But Quaker can be very territorial of the cage, once they leave the cage mine are sweethearts.
It's good to give us all info like cage size , placement of the cage, what is the household like, other pets? What are you feeding? Are you aware of Teflon and other household deadly toxins?
But mostly you just need to spend time sitting next to the cage, not staring right at him, and just talk. Have a couple of treat dishes , everytime you come to say hi, or pass the cage you drop one treat in, a seed often works best. Read all the blue stickies at the tops of each forum. Read other stories, I have a Rescuing Penny thread in Quakers. She was a mess the first few days weeks home, but s real gentle lady now.
You will do this! First day or two don't pressure him, give him time to get used to all this new stuff. You can cover the back half of the cage, so he feels safer , go slow. My Quakes hate change lol

Congratulations! Welcome to the forums! There’s not much I can add to the excellent advice Laurasea offered, she’s been through quaker basic training, quakers are bossy by nature but if you get through boot camp you’ll have a wonderful feathered companion. Seriously though, quakers are amazing birds, so smart, funny, vibrant, busy and full of attitude. As Laurasea mentioned, they tend to be slow to accept big or even small changes, it’s better to let the Quaker adapt at his own pace. Don’t expect too much, too soon. Here’s the link on bonding that Laurasea mentioned.

http://www.parrotforums.com/general-parrot-information/49144-tips-bonding-building-trust.html

I am SOOOOOOOOOOOOOOOOO glad you're here!
You and your bird can profit from all the knowledge and support available.
Good for you, for reaching out.

Stick with us.