A bird nest prevention device for use in a building structure includes a mounting face for connecting to a face of a truss by a connector, a first angled portion having a lower edge connecting to an upper edge of the mounting face and being inclined upward therefrom, a second angled portion having a lower edge opposing the lower edge of the first inclined portion and being inclined upward therefrom, an upward extending portion connecting at a lower portion thereof to the first angled portion and the second angled portion and wherein the lower edges form a stand to rest on top of the truss.