Technically, Peter is correct. However, if you ever stop by the fuel pumps at BQR, you'll see a big board that describes the "departure procedures". Departing to the East and South, you can depart without restriction. Departing to the North and West, Buffalo would like to talk to you. You don't HAVE to talk to them, but it is a courtesy to call them...especially now that 32 has an ILS and is longer than it used to be. Stop by BQR one of these days and check it out.
If you listen to the BUF feed, sometimes you'll here pilots call BUF for flight following and a squawk while still on the ground at BQR. I wouldn't hesitate to call BUF approach if it's optional, they are some of the nicest people around.