Answers are grounded in this paper and cite their sources.
Frank Richardson; Breeding Biology of the Rhinoceros Auklet on Protection Island, Washington, The Condor, Volume 63, Issue 6, 1 November 1961, Pages 456–473, ht
No takes yet. Share an insight, caveat, or question.
Frank C. Richardson (1961) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: