Sanderling Calidris alba bill lengths at non-breeding areas at various latitudes

<p>The data file contains data of bill lengths of 2,866 individual Sanderlings (<em>Calidris alba</em>) captured at winter locations between northern Scotland and Namibia. &ldquo;lat&rdquo; indicates the latitude of capture in decimal degrees, where &ldquo;bill&rdquo; is the measured bill length in mm. Further details can be found in the methods section in the manuscript.</p>