Latest Eurasian Sparrowhawk Stories

Research Shows Cuckoos Impersonate Hawks By Matching Their 'Outfits'
2013-10-16 11:54:30

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...

Latest Eurasian Sparrowhawk Reference Libraries

2006-02-28 20:13:00

The Sparrowhawk (Accipiter nisus) is a small bird of prey in the family Accipitridae. The red-tailed hawk of the U.S. Central Plains was once identified by this name in pre-Columbian times. Males of this species were once referred to as muskets; the gun called a musket was named after the bird. It is a widespread species throughout the temperate and subtropical parts of the Old World. This bird is mainly non-migratory, however races from colder regions of north Europe and Asia winter in...

2005-06-14 12:19:55

The American kestrel (Falco sparverius) is a small falcon that breeds in open and semi-open areas across most of North America to South America. They nest in cavities or nesting boxes and the male provides food for the female during nesting. Adults are 23-27 cm in length with white cheeks with two black vertical lines, one in front of the eye and one at the ear. They have long slim pointed wings, a blue-grey cap and a long chestnut tail. Their back is chestnut with black bars. Adult...

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