Photographs from a Canada Goose (Branta canadensis) found dead in Wisconsin

Photographs from a Canada Goose (Branta canadensis) found dead in Wisconsin, USA. A) There was an impaction within the esophagus just proximal to the clavicles (arrows). A hole in the esophagus was caused during dissection. The bird was emaciated, with severe loss of the pectoral skeletal muscles and prominent keel bone (*). B) The contents of the esophageal impaction from proximal (left) to distal (right) included grass, small seeds, and a large bolus of soybeans. The underlying mucosa was thickened, roughened, and green grey to yellow.