In crested auklets both sexes are ornamented. Specific odors in crested auklets are directly related to courtship behavior. The alcid family includes the murres, guillemots, auklets, puffins, and murrelets. Thousands of Cassin's auklets in Oregon have starved due to lack of food. It also uses unused burrows from auklets. Crested auklets dive from the surface of the water to catch their food. Whiskered auklets, which numbered 25,000 in 1974, had increased to 116,000 in 2003. Other examples for the sensory bias mechanism include traits in auklets, wolf spiders, and manakins. Other examples of the sensory-bias mechanism include traits in auklets, wolf spiders, and manakins. The Hoh Indians used to frequent Destruction Island to capture rhinoceros auklets. Least auklets are vulnerable to oil spills and introduced species. Crested auklets have a distinctive citrus-like plumage odor. Crested auklets have a wide variety of single and complex calls. Least auklets feed predominantly on calanoid copepods, particularly those of the genus "Neocalanus". Crested auklets are found throughout the northern Pacific Ocean and Bering Sea.