Burnham, K. K., J. L. Burnham, J. A. Johnson, B. W. Konkel, J. Stephens, and H. Badgett. “First Record of Horned Puffin in the North Atlantic and Tufted Puffin in High Arctic Greenland”. Polar Research, vol. 39, June 2020, doi:10.33265/polar.v39.4458.