BioOne.org will be down briefly for maintenance on 17 December 2024 between 18:00-22:00 Pacific Time US. We apologize for any inconvenience.
How to translate text using browser tools
9 December 2019 Horner Syndrome in Birds of Prey
Mathieu K. LaChance, Guy Fitzgerald, Stéphane Lair, Marion R. Desmarchelier
Author Affiliations +
Abstract

Horner syndrome, which results from oculosympathetic denervation, has rarely been reported in birds. A retrospective study was conducted in a raptor rehabilitation program to gain further insight into Horner syndrome in birds. Data from 5128 live raptors admitted over 20 years were reviewed. Horner syndrome was identified in 22 individuals from 13 different species. Raptors from the orders Strigiformes, Accipitriformes, and Falconiformes were affected, with the last order being underrepresented. Ptosis of the upper eyelid was the most commonly reported clinical sign in the birds diagnosed with Horner syndrome, having been noted in 21 cases. Signs of traumatic injury, such as fractures, wounds, and hematomas, were documented in 18 cases. Among the 22 cases, 12 birds were euthanatized, 3 died in treatment, and 7 were successfully released back into the wild.

© 2019 by the Association of Avian Veterinarians
Mathieu K. LaChance, Guy Fitzgerald, Stéphane Lair, and Marion R. Desmarchelier "Horner Syndrome in Birds of Prey," Journal of Avian Medicine and Surgery 33(4), 381-387, (9 December 2019). https://doi.org/10.1647/2018-383
Published: 9 December 2019
KEYWORDS
Avian
birds of prey
feather asymmetry
Horner syndrome
miosis
neurology
ptosis
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top