esearch Center for Eco-Environmental Sciences (RCEES) is seeking two post-doctoral research scientists in quantitative ecology, statistical modeling, and migratory bird management and tracing bird migration with stable isotope approaches. Our team have been focusing on migratory birds and wetlands research for over 20 years. We are automatically obtaining accurate GPS movement data from thousands of birds simultaneously. It has already yielded over 40 million data points (localizations) and one billion 3-axis acceleration data from nearly 3000 birds of about 60 bird species, with data accumulation rates of up to 150 thousand data points per day. This exceptionally large dataset provides a unprecedented opportunity to investigate key interactions among individuals, both within and between species, at the fine resolution relevant to bird individual-individual interactions and over relatively long periods of time (days, weeks, months and even years), and is well suited for studies of fine-scale interactions between birds and their environment, local movements, dispersal, the size of individual home ranges, location of habitats, relationships and the like.