The specific objectives of this report are to synthesize available data and scientific literature on SIEN birds (distribution, abundance, population trends, and demography for 145 focal species), identify and discuss current and future ecological stressors to SIEN bird populations, and describe management options. The overarching purpose for this report is to inform and support the SIEN long-term bird monitoring program and the SEKI Natural Resource Condition Assessment (NRCA). While this report specifically addresses SIEN and SEKI requirements, the scope of this assessment is network-wide and should serve to inform the concurrent YOSE and DEPO NRCA projects.