Cuckoo Eggs
How to Pick the Difference


Cuckoo eggs may mimic the exact colour of the host eggs, or they may be a fair match, or may not match the host eggs at all. Sometimes the shape is a give-away. Cuckoos generally have elongated oval eggs, whilst those of their passerine hosts tend to be pointed at one end. In some dark cuckoo eggs  (e.g. Black-eared Cuckoo) the colour can be rubbed off leaving a pale blue shell beneath.

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Horsfield's Bronze-Cuckoo (1)
Western Thornbill (2)
Horsfield's Bronze-Cuckoo (1)
Splendid Fairy-wren (2)
Horsfield's Bronze-Cuckoo (right)
Red-capped Robin (left)
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Photo: I. Rowley

Shining Bronze-Cuckoo (1)
Yellow-rumped Thornbill (2)
Shining Bronze-Cuckoo (1)
Western Thornbill (2)
Channel-billed Cuckoo (1)
Torresian Crow (2)

     

The photographs on this page may be reproduced on condition that:-
(1) you acknowledge the source (Michael Brooker, Ian Rowley) and
(2) you do not use the photograph for a commercial purpose.


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