Tiny pests and warm weather can cause lag in caribou migration
When spring comes to the Arctic, caribou across Canada and Alaska synchronize the timing of their movement in a massive continent-wide migration to their calving ...
migration
Climate change leads birds to migrate earlier
Climate change is prompting migratory birds to take flight earlier, raising questions about how these shifts will affect their ability to persist in a warming ...
Bison don’t surf – they make waves
Bison aren’t simply grazing as they move across the meadows of Yellowstone National Park. They are engineering the environment, manipulating the forage on the ...
Caribou migrate a long way — but wolves travel even farther
In the battle between wolf and caribou, who wins? This isn’t a battle for survival. This is bragging rights for long-distance travel. Researchers set out to ...
Study finds sex bias in bird conservation plans
After pairing up and raising chicks, males and females of some bird species spend their winter break apart. At the end of their journey to Central or South America, ...
Genes play a role in warbler migration
For golden-winged and blue-winged warblers, where they go when they migrate south is in their genes, researchers found. “These small songbirds don’t really have ...
Geolocators yield conservation clues for migratory birds
Tiny geolocators attached to the backs of golden-winged warblers have shed new light on their migrations and revealed a part of the globe that could be critical to ...
Birds lose weight, migrate later after consuming insecticide
Birds that have ingested seeds treated with a common insecticide experience weight loss and delay their migrations — effects that could reduce their chances of ...
Watch: California embarks on massive wildlife overpass
California is building what state transportation officials will be the world’s largest wildlife overpass. Paid mostly with private donations, the overpass will ...
Biologists document oldest recorded Kentucky Warbler
An Alabama state biologist recently recaptured a male Kentucky warbler he originally released in 2010 when it was 2 years old. That makes the bird at least 11 — ...