Object
Marshland Birds
Distinct from marshland mud/clay terrain features; specifically refers to birdlife as living environmental sentinels
1 appearances
Significance
Their presence becomes a living barometer of safety in the deceptively peaceful marshland. When the birds stop calling, it is not birdsong that Jo and the Doctor should fear, but the absence of their warnings.
Appearances in the Narrative
When this object appears and how it's used