Latest Cuculus Stories
For some birds, recognizing their own eggs can be a matter of life or death.
University of Cambridge New research shows that cuckoos have striped or "barred" feathers that resemble local birds of prey, such as sparrowhawks, that may be used to frighten birds into briefly fleeing their nest in order to lay their parasitic eggs. By using the latest digital image analysis techniques, and accounting for "bird vision" - by converting images to the spectral sensitivity of birds - researchers have been able to show for the first time that the barred patterns on a...
To minimize the chance of being recognized and thus attacked by the birds they are trying to parasitize, female cuckoos have evolved different guises.
The first pair of five male cuckoos that were fitted with tracking devices by UK scientists last spring returned to England over the weekend, bringing with them new data about their annual migratory patterns.
New research reveals how biological arms races between cuckoos and host birds can escalate into a competition between the host evolving new, unique egg patterns (or 'signatures') and the parasite new forgeries.
The Common Hawk-cuckoo (Cuculus varius) also commonly called the Brainfever bird, is a species of cuckoo that occurs in Punjab, Pakistan east across much of the Indian peninsula, Bangladesh, and Sri Lanka. It is found at altitudes of 2600 feet in the Himalayas. Most birds are resident but ones that occur at higher altitudes or in arid regions are locally migratory. Its habitat is dry deciduous forests, where it is mostly solitary. It is called Hawk-cuckoo as it resembles a sparrow hawk....
- A small wooded valley; a dell.
- The protecting weather-shed built around the entrance to a house.