“…Most studies of parasitic fauna in the Franklin's gull concern ectoparasites. To date, four species of lice have been found in the Franklin's gull: Saemundssonia lari (Fabricius, 1780), Quadraceps punctatus (Burmeister, 1838), Actornithophilus piceus lari (Packard,1870) and Austromenopon transversum (Denny, 1842), recorded in the Neotropical region and Northern hemisphere (Emerson, 1972;Palma, 1995;Hellenthal et al, 2004;González-Acuña et al, 2006, 2011Galloway et al, 2014;Gomez-Puerta & Cribillero, 2015). In addition, the nasal mite Turbinoptes strandtmanni Boyd, 1949 and feather mites of the genera Alloptes Canestrini, 1879, Zachvatkinia Dubinin, 1949and Ingrassia Oudemans, 1905 were reported from this host in North America (Galloway et al, 2014;Knee & Galloway, 2016).…”