What specific height range is mentioned regarding hedges that illustrate the interdependency between cover and food production?
Answer
Hedges of up to two meters tall that are in full leaf before nesting begins
The structure of the agricultural landscape is critical for Yellowhammer survival, extending beyond just the open feeding areas. Specific mention is made of hedges that reach up to two meters in height, provided they achieve full leaf cover prior to the nesting period. These hedges serve a dual purpose: they provide essential cover, security, and nesting sites low to the ground, and they also act as reservoirs, harboring the insect populations that become necessary for chick rearing early in the season. The maintenance of this structural diversity, especially hedges of this specified height and density, directly impacts food availability.
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