What specific age structure of tree growth, often referred to as coppice, is suitable for the Willow Warbler?
Answer
10–20 years old
The habitat preference of the Willow Warbler leans toward successional stages of woodland development that provide the necessary mix of young trees and developing scrub. Human-altered landscapes can be suitable if they meet these structural requirements, particularly young tree plantations that are only 10–20 years old. This specific age range, often termed coppice, provides the right height and density structure required by the bird, especially in conjunction with low nest cover.
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