Creatures in the milkweed - searching for Montana's monarchs

In western Montana, monarch butterflies seem rare. But where there are patches of showy milkweed (Asclepias speciosa), it's still possible to get up-close with these endangered butterflies. I spent a late July morning looking closely at a large patch of showy milkweed in the Helena Valley. And I found monarchs! I also looked at this plant's weird pollination system, the hazards these flowers can pose for honeybees, and a few of the other specialized insects that inhabit our milkweed patches.