Mite-Filled Cyst on a Brown-headed Cowbird (Molothrus ater) in Florida, USA

Marilyn G. Spalding, James W. Mertins, Matthew J. Reetz, Kandy L. Keacher, Michael L. Avery, Ellis C. Greiner
2010 Journal of Wildlife Diseases  
A large, partly pedunculated mass on the scapular area of a wild-caught captive Brown-headed Cowbird (Molothrus ater) consisted of a multiloculated keratin cyst inhabited by a new species of harpirhynchid mite (Harpirhynchus quasimodo). The mass did not interfere with flight or behavior. This is the first record of such an infestation of cowbirds in Florida.
doi:10.7589/0090-3558-46.4.1279 pmid:20966280 fatcat:ibbydjro7vcpphsgjnqcluhs7e