Top Photo: Eastern tiger swallowtail. Three butterflies known for early season flights have been seen this past week. There are two flight periods when eastern tiger swallowtails can reliably be seen, now, and late summer to fall. There are two separate broods. The butterflies you see now, in spring, have overwintered as pupae and are smaller than the individuals that you’ll see in summer. As caterpillars, they fed on late season, less nutritious foliage in late summer and fall beforeRead more