Cutaneous Lesions in the Gular Region Caused by Feather Follicle Infestation with Harpirhynchidae sp. Mites in Great Crested Flycatchers (Myiarchus crinitus) in New York, USA, 2016-23.

Autor:	Levitskiy AA; College of Veterinary Medicine, Cornell University, 930 Campus Road, Ithaca, New York 14853, USA., Lejeune M; Department of Population Medicine and Diagnostic Sciences, Animal Health Diagnostic Center, College of Veterinary Medicine, Cornell University, 240 Farrier Road, Ithaca, New York 14853, USA., Buckles EL; Department of Population Medicine and Diagnostic Sciences, Section of Anatomic Pathology, Animal Health Diagnostic Center, College of Veterinary Medicine, Cornell University, 240 Farrier Road, Ithaca, New York 14853, USA., Patterson AJ; Braddock Bay Bird Observatory, 10 Braddocks Avenue, Hilton, New York 14468, USA., Childs-Sanford SE; The Janet L. Swanson Wildlife Hospital and the Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, 131 Swanson Drive, Ithaca, New York 14850, USA.
Jazyk:	angličtina
Zdroj:	Journal of wildlife diseases [J Wildl Dis] 2024 Oct 01; Vol. 60 (4), pp. 964-969.
DOI:	10.7589/JWD-D-23-00166
Abstrakt:	Great Crested Flycatchers (Myiarchus crinitus), migratory passerines with a breeding range throughout the northeastern, midwestern, and southern US, are banded annually at the Braddock Bay Bird Observatory located on the southern shore of Lake Ontario, New York, USA. In 2016, a Great Crested Flycatcher was observed with distinct lesions in the gular and ventral neck region, which prompted evaluation for similar lesions in subsequently trapped flycatchers and other passerine species. From 2016 to 2023, 62/102 banded Great Crested Flycatchers had their gular region examined, and seven were found to have lesions (11.3% incidence). Similar lesions were not found in any other species. Lesions were localized to the gular region and included extensive feather loss with thickened, corrugated, pale-yellow skin. Grossly visible 1- to 2-mm-diameter, raised, white-to-yellow foci throughout the affected region corresponded microscopically to feather follicles that were massively dilated with mites. Morphologic analysis of mites obtained from skin scrapes revealed that this mite species belongs to the family Harpirhynchidae. Mites in this family have restricted avian host ranges and cause varying clinical presentations in passerines, though many species remain unidentified. PCR efforts were unsuccessful in yielding a species-level identification. Further monitoring of Great Crested Flycatchers and other avian species is warranted, as the fitness implications of this ectoparasitism at the individual and population levels are not known. (© Wildlife Disease Association 2024.)
Databáze:	MEDLINE
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