Thunderbird Lodge Preservation Society has historically reported fundraising expenses on their federal tax return called the Form 990. However, Thunderbird Lodge Preservation Society’s most recent Form 990 for 12/2018 does not list fundraising expenses. Based on our experience, charities are only rarely able to raise substantial sums of money without incurring any associated fundraising costs. We have reached out to Thunderbird Lodge Preservation Society for further clarification, but have not received an adequate explanation and have thus issued this Moderate Concern CN Advisory.