New Hampshire’s Pack Monadnock is one of the best places in the state for hawk watch. Most of the migrating raptors in northern New England and northeastern Canada follow the trail of thermal updrafts that take them over this peak. Last fall, more than 13,000 raptors were counted from the hawk watch station at Pack Monadnock, and more than 10,000 of them were broad-winged hawks. And this year, Eric Masterson decided he would follow them on their journey south, on a bicycle. Eric is a biologist