Cuckoos and Hawks

To: Birding-aus <>
Subject: Cuckoos and Hawks
From: storm <>
Date: Mon, 18 Apr 2011 21:41:13 +1000
Hi Birders

recycled article from the BBC website. I don't know if the same would be true for Australia.

Cuckoos have evolved plumage patterns that give them a hawk-like appearance to scare the birds whose nests they invade, say scientists.

A study has shown that reed warblers - a cuckoo host species - are less likely to attack more "hawk-like" cuckoos.

This helps the parasitic birds to lay their eggs undisturbed.

The visible similarity between cuckoos and sparrow hawks was already clear, but this is the first study to show the effect the trickery has on host birds.

more at link ..


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