Gastrointestinal and external parasitism in the Magellanic Horned Owl Bubo magellanicus (Strigiformes: Strigidae) in Chile

Abstract

To describe the parasitic community of the Magellanic Horned Owl, Bubo magellanicus (Aves, Strigiformes), 19 carcasses from central Chile were analyzed. Ectoparasites were collected through plumage inspection, while endoparasites were collected through traditional techniques of parasitological necropsy. Sixteen owls were infected with at least one species of ectoparasite (84.21%) or endoparasite (31.58%). Eleven of 19 birds (57.89%) harbored feather mites of the three species Pandalura cirrata (42.11%), Glaucalges attenuatus (47.37%), and Kramerella sp. (10.53%), whereas 16 individuals (84.21%) harbored the chewing louse Strigiphilus chilensis. Only six birds (31.58%) were infected with helminths; the nematodes Capillaria tenuissima (26.32%) and Dispharynx nasuta (5.26%); the acanthocephalan Centrorhynchus spinosus (5.26%); and the trematode Neodiplostomum sp. (5.26%). Apart from S . chilensis, all parasites comprised new records for B . magellanicus.

Study of the helminth fauna in eagle owl (Bubo bubo) in the south of Spain

“…Capillaria falconis ) ( Illescas et al, 1993 ; Sitko and Heneberg, 2019 ), the species identified in our study was C. tenuissima (Rudolphi, 1803). This intestinal Capillaria had been reported also in the American Eagle Owl ( Bubo virginianus ) ( Ramalingam and Samuel, 1978 ) and the Magellanic Owl ( Bubo magellanicus ) ( Grandón-Ojeda et al, 2018 ). The prevalence observed in our study is similar to that detected in Catalonia (57%) by Ferrer et al (2004) , although in this study the sample was lower (only 7 owls) without identifying the species.…”

Endoparasitic fauna of two South American foxes in Chile: Lycalopex culpaeus and Lycalopex griseus

“…The acanthocephalan Centrorhynchus parasitizes birds as its main definitive hosts with cockroaches as intermediate, and reptiles, amphibians and rodents as paratenic hosts (Petrochenko, 1958). In Chile, C. spinosus has been recorded on Magellanic-horned owl (Bubo magellanicus) (Grandón-Ojeda et al, 2018). Meanwhile for native carnivores, there is only one record of unidentified acanthocephalans for Chilla fox (Jiménez & Novaro, 2004).…”

Lice, Flies, Mites, and Ticks on Raptors (Accipitriformes, Falconiformes and Strigiformes) in Rescue Centers in Central Italy

“…Among external arthropods frequently reported in owls [1,2,41,42], K. subpachygaster lice (Table 1; Figure 1: 8) were identified in three out of ten examined tawny owls (S. aluco), while different Kramerella spp. mites (Table 1; Figure 2(7-11)) were identified in almost all positive owls examined.…”