News

Case History: An adult female 21.6-kg red wolf (Canis rufus) was found dead along the side of a road in North Carolina in November 2012.

Chronic wasting disease is as ominous as it sounds for North American cervids.

Case History: Six eastern gray squirrels (Sciurus carolinensis) were found dead below a tree in a residential yard in Wisconsin, U.S.A. 

Case History: An adult male Northern Pintail Duck (Anas acuta) was found dead on a refuge in Arizona, US. Collectively at this location, 29 birds...

Case History: In June 2020, one adult female, 950-g, mountain cottontail rabbit (Sylvilagus nuttallii) with bloody nasal discharge was found dead by a...

Case History: An adult male desert cottontail (Sylvilagus audubonii) was found dead on a ranch in west Texas, U.S.A. Other rabbits had been reported...

Case History: In late December 2019, 25 dead mallards (Anas platyrhynchos) were observed in a retention pond belonging to an adjacent factory in...

Case History: An aged adult male 36 kg Timber Wolf was found dead in the winter of 2003 in northern Wisconsin, USA. The weather was clear and cold...

In this edition of the USGS National Wildlife Health Center (NWHC) newsletter, we are focusing on current and collaborative work on chronic wasting...

Case: A juvenile male 1.46-kg Common Eider (Somateria mollissima) was found dead on a beach in Massachusetts, USA.