North America

Monarch butterfly population rises a little, but still perilously low

The world's migrating monarch butterfly population has bounced back slightly from its record low last year, but the new numbers are still the second smallest on record.

29 January 2015

Monarch butterflies rebound but levels in Mexico still at near-record low

Migrating butterflies covered 2.79 acres in wintering grounds but World Wildlife Fund says they suffer from habitat loss in US, illegal logging and climate change

27 January 2015

Lolita the killer whale closer to freedom with inclusion on endangered list

Decision could trigger a lawsuit by activists who want to fly the orca from Miami and prepare her for release into the wild.

25 January 2015

Great Lakes struggling with invisible threat of plastic microfibre pollution

Tiny synthetic fibres from clothes, cleaning cloths and consumer products are getting stuck inside fish in ways that other microplastics are not

09 January 2015

US Bird Count Shows Climate Change Affecting Migration Patterns

Soon after daybreak just south of Washington in Virginia, a small group of bird watchers peers through  binoculars, excited about seeing a var

08 January 2015

Polar bear populations are slowly shifting northward

"Gene flow occurs over generations, and would not be detectable by using data from satellite-collars," said Lily Peacock

08 January 2015

Scientists remain puzzled by mass of dead birds along West Coast

Dead seabirds continue to litter the beaches of Norther California, Oregon and Washington state.

07 January 2015

Birds 'heard tornadoes coming' and fled one day ahead

US scientists say tracking data shows that five golden-winged warblers "evacuated" their nesting site one day before the April 2014 tornado outbreak.

19 December 2014

City of Vancouver hopes new bird strategy will take flight

The City of Vancouver has produced a draft “bird strategy” to give wing to a better environment for birds.

04 December 2014