| bronchial carcinoma in a red-shouldered hawk (buteo lineatus). | respiratory neoplasms are rare in birds. this report describes carcinoma of the bronchial epithelium in a red-shouldered hawk (buteo lineatus) that presented with weakness and lethargy lasting 4 days that progressed to seizures. grossly, the caudal air sac and coelomic cavity contained approximately 15 ml of dark brown cloudy fluid that displaced the intestines cranially. nodular plaques were present on the viscera and air sacs. microscopic examination of tissues revealed a mass that expanded th ... | 2011 | 22946389 |
| pathology and epidemiology of natural west nile viral infection of raptors in georgia. | carcasses from 346 raptors found between august 2001 and december 2004 were tested for west nile virus (wnv) using virus isolation and immunohistochemistry; 40 were positive for wnv by one or both methods. of these 40 birds, 35 had histologic lesions compatible with wnv infection, one had lesions possibly attributable to wnv, and four had no histologic evidence of wnv. the most common histologic lesions associated with wnv infection were myocardial inflammation, necrosis, and fibrosis; skeletal ... | 2007 | 17495305 |
| surveys for antibodies against mosquitoborne encephalitis viruses in california birds, 1996-2013. | from 1996 through 2013, 54,546 individual birds comprising 152 species and 7 orders were banded, bled, and released at four study areas within california, from which 28,388 additional serum samples were collected at one or more recapture encounters. of these, 142, 99, and 1929 birds from 41 species were positive for neutralizing antibodies against western equine encephalomyelitis virus (weev), st. louis encephalitis virus (slev), or west nile virus (wnv) at initial capture or recapture, respecti ... | 2016 | 26974395 |