Proventricular dilatation in a Cockatoo

Proventricular dilatation in a Cockatoo
History: A male adult Cockatoo had regurgitated.  His feed was changed but continued to regurgitate, and died within a few days.
Gross Pathology:
The bird was very thin with a very prominent keel bone and pectoral muscle atrophy.
The crop and proventriculus were markedly dilated and filled with soft oats. The proventriculus  filled 80% of [...]

Coccidiosis in a Chukar

Coccidiosis in a Chukar
History:   The flock is healthy in the brooder house, but 3-4 weeks after being turned out 2-5% of the birds get weak, thin, and listless.
Gross Lesions:  The two birds were in good body condition with no pectoral muscle atrophy.  No lesions of any significance were found.
Histopathology:
Small intestine:  There are abundant intracellular coccidia in [...]

Ventriculitis, Hepatitis, and unusual inclusion bodies in Quail

Ventriculitis, Hepatitis, and unusual inclusion bodies in Quail
This post presents some unusual and interesting histologic findings of Quail.  Three quail of different ages died acutely.  The birds are raised since birth and at 1 month are turned into an outside pen.  There are 10 dead birds out of a flock of 200. These birds puff up after [...]

West Nile Virus Encephalitis, Myocarditis, and Myositis in a Hawk

West Nile Virus Encephalitis, Myocarditis, and Myositis in a Hawk
History: A three month old Hawk with lethargy, voice change and green urates for 3 days.
Clinical Pathology: Monocytosis and toxic heterophils.
Gross Lesions:
The keel was mildly prominent but there were adequate body fat stores, and minimal autolysis. The spleen was diffusely tan with small multifocal dark red [...]