_Natural prey._--Cockroach (called Chilicabra by Peruvian Indians), Peru (Tschudi, 1847): The bird seized the cockroach and bit off its head then devoured the body discarding the wings. Family LANIIDAE =Lanius ludovicianus= Linnaeus _Common name._--Loggerhead shrike. _Experimental prey._--_Pycnoscelus surinamensis_, U.S.A., Florida (Sanders, 1928). Family STURNIDAE =Acridotheres tristis= Bonnaterre and Vieillot _Common name._--Myna, mynah. _Natural prey._--Cockroaches, Hawaii, Lanai (Illingworth, 1928): Illingworth reported that he had never seen as many cockroaches anywhere else in Hawaii. The birds followed tractors that were destroying cactus and kept close to the chain that turned over the stumps. The following species were collected: _Allacta similis_, _Blattella germanica_, _Cutilia soror_, _Diploptera punctata_, _Leucophaea maderae_, _Periplaneta americana_, _Periplaneta australasiae_, _Pycnoscelus surinamensis_. Illingworth did not state whether the birds ate all these species indiscriminately. _Pycnoscelus surinamensis_, Hawaii (Williams et al., 1931; Schwabe, 1950b): In many places this species forms an important fledgling food for mynah birds. Family VIREONIDAE =Vireo latimeri= Baird _Common name._--Latimer's vireo. _Natural prey._--_Periplaneta_ sp., Puerto Rico (Wetmore, 1916): Cockroaches were found in one of 43 stomachs examined. Family ICTERIDAE =Agelaius xanthomus= (Sclater) _Common name._--Yellow-shouldered blackbird. _Natural prey._--Cockroaches, Puerto Rico (Wetmore, 1916): Oöthecae and remains of adult cockroaches found in stomachs. =Dolichonyx oryzivorus= (Linnaeus) _Common name._--Bobolink. _Experimental prey._--_Pycnoscelus surinamensis_, U.S.A., Florida (Sanders, 1928). =Holoquiscalus brachypterus= (Cassin) _Common name._--Puerto Rican blackbird. _Natural prey._--Cockroaches, Puerto Rico (Wetmore, 1916): A few eggs (oöthecae) of cockroaches in stomachs. =Black bird= _Experimental prey._--_Pycnoscelus surinamensis_, U.S.A., Florida (Sanders, 1928). Family FRINGILLIDAE =Passer domesticus= (Linnaeus) _Common name._--English sparrow. _Natural prey._--_Pycnoscelus surinamensis_, Hawaii (Illingworth, 1931; Schwabe, 1950b): Remains of this cockroach were found in the stomach of the sparrow. =Sparrow= _Natural prey._--_Periplaneta americana_, England (Lucas, 1908, 1920). Cockroaches, Japan (Asano, 1937). =Tiaris bicolor omissa= (Jardine) _Common name._--Carib grassquit. _Natural prey._--Cockroaches, Puerto Rico (Wetmore, 1916): Animal food was found in 5 of 72 stomachs examined; one bird had eaten two cockroaches among other insects. Class MAMMALIA[11] Order MARSUPIALIA Family DIDELPHIDAE =Monodelphis= sp. _Natural prey._--Cockroaches, British Guiana (Beebe, 1925a): The above opossum is nocturnal and arboreal but nests on the ground in grass. Order INSECTIVORA Family ERINACEIDAE =Erinaceus europaeus= Linnaeus