Five. Susato, Meg and Feadóg in D, a Meg in C and a native-american flute in B.
Matthew has my very first original Feadóg D. It's a Mach 2, with the hump on the mouthpiece and I liked the sound of the Mach 3 I got later on better.
http://www.chiffandfipple.com/feadog.htm