Spicebush Swallowtail (Papilio troilus)
As mentioned in the previous post, we took a walk on the Cascade Loop Trail in Patapsco Valley State Park this afternoon. After passing the cascade, we continued up the stream for a good ways. We saw and I photographed a few bluebirds and heard a few other birds, but it wasn’t really the best time of the day for birds. We did see, and I was able to get a reasonable photo of this spicebush swallowtail (Papilio troilus) on a tree trunk. They are a fairly widespread species, found from southern Canada to Florida and west to Oklahoma and central Texas.