What is the primary concern when a bird is showing signs of severe distress?

When a bird is showing signs of severe distress, the immediate concern centers on oxygen supply because birds have a high metabolic rate and are particularly sensitive to hypoxia (lack of oxygen). Respiratory distress can quickly lead to severe consequences, including loss of consciousness or even death if not addressed. In a state of panic or distress, a bird may hyperventilate or experience respiratory muscle fatigue, leading to inadequate oxygenation of tissues.

In contrast, while potential cardiac issues and the likelihood of aggression are also valid concerns in the context of a distressed bird, they are secondary compared to ensuring that the bird has proper oxygen supply. Addressing hypoxia is critical to stabilizing the bird before other issues—like aggression due to fear or cardiac strain from stress—can be mitigated.

Overall, ensuring adequate oxygen flow is vital in an emergency situation, making it the primary concern in cases of severe distress in birds.