A matter of choice; Clothes don't define who a Muslim is, belief does
An interesting article on head covering and modesty for the modern Muslim, as found in the Northern city of Sudbury, Ontario. Also, as reported by individual experience and personal conversations with others from various backgrounds. Helps to not generalize, I think.
One photo at the 2nd part of this story here.
More on Turkey:
In other news regarding Muslim head covering, more discussion on the situation in Turkey, from the point of view of the Canadian, in the article: "Turkish democracy is a fragile thing" by Harry Sterling, of The Ottawa Citizen.