@Foxfyre,
I just found this on the Commonwealth of Mass Division of Fisheries and wildlife which does state they eat birdseed...
"Food: Striped skunks are omnivores and primarily eat insects, invertebrates and fruit. Striped skunks will also eat human garbage, compost, and birdseed from feeders. Thus, they are can also be found around homes in urban and suburban areas. Their primary method of foraging involves digging, often
appears as a single, small hole in a lawn, leaf litter, or sand."
And in the section of keeping skunks wild...
"6. Keep bird feeder areas clean! Use feeders designed to keep seed off the ground as the seeds can attracts skunks. Remove feeders if skunks are seen regularly around your yard."