Vetdle

Think. Diagnose. Play.

Vetdle Archive

Archive Case #109: Avian Hypocalcaemia

Bird veterinary case - Medium - June 20, 2026

Clinical Clues

  1. An adult parrot is examined for intermittent weakness and abnormal movements.
  2. Episodes are brief and neurologic, with the bird recovering between them.
  3. The long-term diet has been mostly seeds with limited balanced supplementation.
  4. Ataxia and mild seizures occur without evidence of trauma.
  5. Bloodwork reveals a markedly low calcium concentration.
  6. Nutritional hypocalcaemia is recognized in African Grey parrots and can cause weakness, tremors, and seizures.

Diagnosis

Avian Hypocalcaemia

This case is most consistent with Avian Hypocalcaemia because the parrot has neurologic signs with documented low calcium on a deficient diet. The most important clues are the species and seed diet history, which make a primary brain lesion less likely.

Learning review

Review the case evidence

Use the paired clues to explain how the evidence in this bird case supports the provided diagnosis, Avian Hypocalcaemia, then compare your reasoning with the case explanation.

Evidence checkpoints

Clues 1-2

  1. Clue 1: An adult parrot is examined for intermittent weakness and abnormal movements.
  2. Clue 2: Episodes are brief and neurologic, with the bird recovering between them.

Clues 3-4

  1. Clue 3: The long-term diet has been mostly seeds with limited balanced supplementation.
  2. Clue 4: Ataxia and mild seizures occur without evidence of trauma.

Clues 5-6

  1. Clue 5: Bloodwork reveals a markedly low calcium concentration.
  2. Clue 6: Nutritional hypocalcaemia is recognized in African Grey parrots and can cause weakness, tremors, and seizures.

Self-review prompts

  1. After clues 1-2, what evidence from this bird case shaped your initial interpretation?
  2. When you compare clues 3-4 with clues 1-2, what changed in your reasoning about Avian Hypocalcaemia?
  3. How do clues 5-6 align with the case explanation for Avian Hypocalcaemia?

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.