I cannot speak for those who have come forward and have done their own identification. I can speak for how we and our partners identify those refugees for resettlement. As you mentioned yourself, we have identified for the moment a few hundred Yazidi, in Turkey and also in other countries, and not yet the thousands as others have said. I cannot speak for them, but we have a whole system of how to identify high needs for resettlement.
Evidence of meeting #42 for Citizenship and Immigration in the 42nd Parliament, 1st session. (The original version is on Parliament’s site, as are the minutes.) The winning word was unhcr.
A recording is available from Parliament.