Why do eagles lay carpets?

After building large platform nests, many eagles line them with a thick layer of green leaves, which they replenish regularly. The reason for this is something of a mystery, though several theories exist. One theory holds that the aromatic leaves of some plants repel parasites, while another argues that the leafy layer insulates the nest from draughts.

After building large platform nests, many eagles line them with a thick layer of green leaves, which they replenish regularly. The reason for this is something of a mystery, though several theories exist. One theory holds that the aromatic leaves of some plants repel parasites, while another argues that the leafy layer insulates the nest from draughts.

- Birds, The Inside Story, Rael and Hélène Loon

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