sentences:  Usually, it does not kill birds.However, in areas where avian malaria is newly introduced, such as the islands of Hawaiʻi, it can be devastating to birds that have lost evolutionary resistance over time.Avian malaria is a vector-transmitted disease caused by protozoa in the genera "Plasmodium" and "Haemoproteus"; these parasites reproduce asexually within bird hosts and both asexually and sexually within their insect vectors, which include mosquitoes (Culicidae), biting midges (Ceratopogonidae), and louse flies (Hippoboscidae).