Wow, you're extremely lucky!

Do you know what kind of macaw? Also, are you honestly prepared for a macaw? I don't mean to sound negative, but I could never, in my life, be able to cater to a full blown Macaw. Their diets deter me straight away because I know they have to have certain nuts, like the Brazil nut, which I can't even find in the grocery store! They also need macadamia nuts, which I can barely buy for myself, ha. I love this link:
http://www.avianadventuresaviary.com/baby.html

Also, how old is the macaw? If it's less than 2 years, be aware my friend. The Terrible Two's are approaching.