Sometimes, a common cuckoo female will target certain hosts whose eggs appear similar to her own. This increases the chances of the host bird not rejecting the cuckoo’s eggs or abandoning the nest.

Birds need to recognize a cuckoo egg dumped in their own nest and either throw out the strange egg or desert the nest to start afresh. In Japan, the common cuckoo recently switched to a new ...

The term comes from the cuckoo bird, which lays its eggs in the nests of other birds. See Easter Egg. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

2010). These and other cuckoo hosts appear to have evolved a simple rule of thumb to direct their behavior: "eject the egg unlike your own". But how does a bird know what its own eggs look like?

Recently, staff at the Xinfengjiang Forestry Administration of Guangdong Province recorded the first sighting of the rare Emerald Cuckoo ... these birds have been nesting and laying eggs in ...

The collection of wild birds' eggs is now only permitted with a licence and the historical specimens already ... Tree Pipits have evolved remarkably high variation in egg colour and pattern as a ...

When the cuckoo chick hatches, it ejects other eggs or hatchlings to get all the ... who’s an avid wildlife photographer, observed the birds’ behavior in 2014 in Amsterdam, where she lives.

Cuckoo finch egg in zitting cisticola nest. Cuckoo finch eggs closely mimic the colour and pattern of the eggs of each of their several host species, to trick host parents into accepting the ...

Lab safety rules dictate that one must tie back long hair. Rosemarie Hansen learned the hard way when an open flame turned her locks into a lesson. On the hunt for informative health and disease ...