Cuckoos stay on course
With short hectic wing strokes that are hardly raised above the body, the flight of the cuckoo is not the height of elegance. Nevertheless, their wings carry them over 16,000 kilometres a year. Martin Wikelski ...
Chickless birds guard nests of relatives
(Phys.org) —New research has solved a mystery as to why some birds choose not to reproduce, and instead help to guard the nests of their close relatives. This occurs in about nine percent of all bird species.
Cuckoos impersonate hawks by matching their 'outfits'
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 ...
Study shows fairy-wrens learn to drive off cuckoos from their neighbors
Birds find ways to avoid raising cuckoos' young
Some species of birds reproduce not by rearing their own young, but by handing that task on to adults of other species. Known as brood parasitism, this habit has been most thoroughly researched in the cuckoo. ...
A magpie's guide to avoiding cuckoo parasitism
Some birds use a different breeding strategy to others to avoid cuckoos infiltrating their nests, say scientists.
Bees that go 'Cuckoo' in others' nests
The biota of island archipelagos is of considerable interest to biologists. These isolated areas often act as 'evolutionary laboratories', spawning biological diversity rapidly and permitting many mechanisms ...
Global warming winner: Once rare butterfly thrives
(AP) -- Global warming is rescuing the once-rare brown Argus butterfly, scientists say.
British ornithologists track cuckoo birds migration route
Parasite arms race spurs color change in bird eggs
The eggs laid by two African bird species have evolved different color patterns over a period of just 40 years, according to new research published in The American Naturalist. The quick change appears to be ...
Featherweight songbird is a long-distance champ
A tiny songbird weighing just two tablespoons of sugar migrates from the Arctic to Africa and back, a distance of up to 29,000 kilometres (18,000 miles), scientists reported on Wednesday.
Treasure trove of wildlife found in Peru park
The Wildlife Conservation Society's (WCS) Peru program announced today the discovery of 365 species previously undocumented in Bahuaja Sonene National Park (BSNP) in southeastern Peru.
Biological arms races in birds result in sophisticated defenses against cuckoos
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.
Cuckoos evolve to fool angry birds
(PhysOrg.com) -- Australian cuckoo birds have taken a new evolutionary step mimicking the color of their host young to avoid certain death, according to a study by researchers from The Australian National ...