(a)

(b)

(c)

(d)

Figure 2: Photographs of monarch migration roosts on various tree types submitted by Journey North citizen scientists. Photograph credits: (a) Iris Tower, Youngstown, NY; (c) Emily McCormick, Mount Cory, OH; (b) Ron & Bobbie Streible, Fort Morgan, AL; (d) Bruce Morrison, Hartley, IA.