专题：Bird parasitology and diseases
This cluster of papers focuses on the study of avian malaria parasites, including Haemoproteus and Plasmodium, in bird hosts. It covers topics such as host specificity, vector-borne diseases, parasite diversity, molecular phylogeny, pathogenic effects on bird populations, interactions with ectoparasites, and the impacts of climate change on the prevalence and distribution of avian malaria.