They're agitated. A pair of glaucous gulls—chick snatchers, egg stealers, the Arctic's formidable winged predators—are approaching from the east. The terns put up a fierce defense. They flash ...

The most widespread pink-legged gull in North America, the herring is common in the east and mainly a winter visitor in the west. Hybrids can be locally common (mainly in the wescat). Polytypic.

Monitoring ecosystem health: the Salish Sea Gull project This project is a 5-year collaboration between Environment and Climate Change Canada (ECCC) and the Centre for Wildlife Ecology (Williams Lab) ...