loading . . . Nests, Threats, and Leks: Nonrandom Distributions of Nests in Ruffs (Calidris pugnax) This project investigates the nest distribution of the ruff (Calidris pugnax), an endangered shorebird. Using satellite imaging, we established a suitable breeding area and analyzed the factors influ.... https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.70997