This project will create new knowledge regarding mechanisms that affect disease presence in an Arctic specialist, the gyrfalcon (Falco rusticolus). The gyrfalcon is the largest falcon in the world and breeds almost exclusively in the Arctic, which is currently experiencing an unprecedented rate of environmental change. As a top avian predator, the gyrfalcon is a sentinel of Arctic health. Milder winters are altering the ranges and migration patterns of many animals, which has introduced novel vectors of disease to Arctic systems. There is a need to study the effects of new pathogens in the Arctic and to characterize immune competence mechanisms in wild populations. Arctic birds are important for understanding these mechanisms, given their social and ecological value, long-distance dispersal potential, and ability to transmit disease to other animals and people. This award builds capacity at Boise State University to use cutting-edge approaches, including the generation of whole genomes of birds and their gut microbial communities, to understand the relationship between mechanisms of immune competence and disease presence in this iconic raptor species. The research is timely because it explores the ability of scientists to test for resilience to diseases that are affecting birds and people globally, including highly pathogenic avian influenza. This proposed work will broaden participation in the sciences for K-12 and undergraduate students, by supporting an Adopt-a-Scientist e