The present study on the role of strains of adenovirus in wildlife reservoirs, and their prevalence isunder exploration. In several previous studies, the presence of adenovirus strains in wild birds has been investigated.Worldwide distribution and outbreaks of adenovirus infections have been reported by many authors. The present studyinvestigated the prevalence of FAdVs in 317 samples of different bird species from the northwestern region of Poland. Anapplied specific, sensitive, and efficient, without cross-reactivity loop-mediated isothermalamplification(LAMP) method togauge the prevalence of fowl adenovirus strains in wild birds was developed and used.