Pennants get their name because of the perpendicular way that they often perch at the top of a lone stick, weed stalk, or blade of grass. When perched this way they some what resemble a pennant or flag. We have two types of pennants in Minnesota, the calico pennant, which is red or yellow, and the Halloween pennant pictured above. This is either a female or young male because it is yellow in color. Mature males, and some females, are mostly orange and black in color which is why they got the name Halloween pennant.