Abstract
Male periodical cicadas (Magicicada cassint) were collected from a chorusing center near Lawrence, Kansas. Males in copula were significantly larger than males from the same population that were not in copula. Cicadas were offered to captive house sparrows in an aviary. The sparrows showed no consistent preference with regard to cicada size, although they did select females in preference to males. Birds may discriminate because females are more nutritious or they may avoid males which produce a disturbance squawk when handled.
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