A 37-year-old, female Chilean flamingo (Phoenicopterus chilensis) presented with severe facial angioedema, bilateral corneal and palpebral edema, nictitating membrane paralysis, bradycardia, bradypnea, hypothermia, and numerous stingers and remnants of eastern yellow jacket wasps (Vespula maculifrons) attached to the feathers of the head, palpebrae, and conjunctiva. Evaluation of 2 complete blood cell counts and results of plasma chemical analysis and serum protein electrophoresis revealed severe increases in creatinine phosphokinase and aspartate aminotransferase activity, electrolyte disturbances, and moderate increases in levels of α1, α2, β1, and γ immunoglobulins when compared with reference interval values and conspecifics. Despite intensive treatment, the bird died 19 hours after presentation. Results of histologic evaluation of tissues were compatible with envenomation. Response to envenomation in avian species is not documented but should be considered in birds presenting with angioedema.
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