Abstract: To document the baseline avian resources of the Fujian Yongchun Niumulin Provincial Nature Reserve,systematic surveys were conducted using the line-transect method(totaling 47 km)and infrared camera monitoring(deploying 25 cameras across a 9 km² area)during two periods:2022—2023 and 2024—2025.A total of 97 birds species were recorded,belonging to 12 orders and 41 families,accounting for 16.39% of the total avian species documented in Fujian Province.Among them,one species is listed as a National First-Class Key Protected Wild Animal:Syrmaticus ellioti.16 species as National Second-Class Key Protected Wild Animals:Arborophila gingica,Lophura nycthemera,Chalcophaps indica,Centropus sinensis,Strix leptogrammica,Glaucidium brodiei,Glaucidium cuculoides,Otus lettia,Otus spilocephalus,Spilornis cheela,Nisaetus nipalensis,Ictinaetus malaiensis,Accipiter trivirgatus,Harpactes erythrocephalus,Garrulax canorus and Leiothrix lutea.Furthermore,four species were listed as Provincial Key Protected Wild Animals of Fujian:Upupa epops,Eurystomus orientalis,Psilopogon virens and Psilopogon faber.In terms of resident types,resident birds were dominant,with 78 species(80.41%),followed by 13 winter visitors(13.40%),3 summer visitors(3.09%)and 3 passage migrants(3.09%).The ecological assemblage was dominated by passerine songbirds,with a total of 64 species(65.98%).These findings enrich the baseline records of avian resources within the reserve and provide a scientific basis for the protection,management,and further research of local bird populations.