Vanessa cardui of the sky, implying the use of a solar compass to orient its migratory direction and maintain a straight flight path. "V. cardui" displays a unique system of continuous mating, throughout all seasons, including the winter. This may be attributed to its migratory patterns, thus significantly affecting its mating behavior. During European migrations, the butterflies immediately begin to mate and lay eggs upon arrival in the Mediterranean in the spring, starting in late May. In the United States, painted lady butterflies migrating towards the north experience poor mating conditions, and many butterflies have limited breeding capabilities. The "local adult generation"
Black-and-white hawk-eagle particularly towards the bill, is also black. The wings are black, and the bird has a brownish tail barred black-dark grey and with white tip. The iris is orange, the feet pale to bright yellow with black talons. The bill is black with a yellow cere. The sexes are alike in color, but the female is larger. Immature birds have pale edges on the upperwing coverts and some brownish-grey feathers on the back. The black-and-white hawk-eagle is hard to confuse with any other bird in its range. The black-faced hawk ("Leucopternis melanops") is very similar in overall coloration, but it