Stenkewitz, Ute; Nielsen, Ólafur K.; Skirnisson, Karl; Stefansson, Gunnar
(Bio One, 2017-06)
Feather holes have traditionally been suggested to be feeding traces of chewing lice (mallophagans). There is controversy whether mallophagans are the real source of feather holes. We studied mallophagan infestations and holes in tail feathers of 528 ...