What shape of excavation hole is the Pileated Woodpecker known for making?

Answer

Large, rectangular holes

The Pileated Woodpecker is specifically noted for its heavy-duty excavation requirements, largely driven by its preference for feeding on carpenter ants found deep within trees. To access these insects, this species employs a very powerful bill to create distinctive excavations. Unlike some smaller species focused on insect larvae just under the surface, the Pileated Woodpecker is recognized for carving out large, rectangular holes in the wood while searching its quarry. This type of excavation necessitates a particularly robust bill structure capable of handling the substantial forces required to remove large pieces of wood.

What shape of excavation hole is the Pileated Woodpecker known for making?
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