Genus Haemoproteus is a parasitic protozoan that infects birds worldwide. It is a blood parasite that causes haemoproteosis, a disease characterized by anemia and lethargy. The genus is commonly referred to as "avian heme-protozoans" or simply "haemosporidia." There are several species within this genus, each with its own distinct characteristics and genetic makeup. Some of the common synonyms for Genus Haemoproteus include avian malaria, bird protozoan, and hemozoin-forming Haemoproteus. Additionally, some scientific studies also refer to this genus as "Plasmodium-like parasites" due to their similar genetic structure to the Plasmodium genus, which causes malaria in humans.