Aspergillosis in 41 wild bird species in the eastern United States: a 22-year retrospective review.

Aspergillosis is the most commonly and widely reported fungal infection in birds. Disease development is often secondary to stressors that cause immunocompromise, and it is typically regarded as a disease of captivity. We retrospectively evaluated data from 133 birds diagnosed with aspergillosis at the Southeastern Cooperative Wildlife Disease Study from 2001-2023 to assess diversity and relative frequency across avian taxa, gross and histologic lesion patterns, and comorbidities.

Generalized knemidokoptic mange (Micnemidocoptes sp.) in a bald eagle (Haliaeetus leucocephalus) from Arkansas, USA.

This report describes a case of generalized knemidokoptic mange caused by Micnemidocoptes sp. in a bald eagle (Haliaeetus leucocephalus). In June 2024, an adult male eagle from Polk County, Arkansas, presented with severe skin disease and in a moribund state.

An Enigmatic Wild Passerine Mortality Event in the Eastern United States.

The ability to rapidly respond to wildlife health events is essential. However, such events are often unpredictable, especially with anthropogenic disturbances and climate-related environmental changes driving unforeseen threats. Many events also are short-lived and go undocumented, making it difficult to draw on lessons learned from past investigations.

DIAGNOSTIC INVESTIGATION OF AMERICAN ROBINS () WITH FATAL ETHYLENE GLYCOL TOXICOSIS AND CONCURRENT SPP. INFECTION WITH RETROSPECTIVE REVIEW OF 44 YEARS OF DIAGNOSTIC DATA.

We describe a mortality event involving at least 44 adult American robins () that were found dead on the morning of February 25, 2023 in a residential backyard in Natchitoches Parish, Louisiana. Five carcasses were submitted for diagnostic evaluation. All five robins were in good nutritional and feather condition with no external indicators of injury or illness.