The Bird Alliance of Oregon has tracked the crow roost for more than 20 years, but it has grown within the past decade.

Portland’s crows are in the waning weeks of their winter roost. As spring approaches, the thousands of birds that flock to ...

The Pittsburgh murder of crows settle down for the night together in what’s called a colonial roosting colony, which provides safety against predators for the birds during the winter.

However, some birds take a different approach and will roost in large numbers, like our American crows, and we also see resting congregations of shorebirds, especially during spring and fall ...

A winter roost of crows numbering about 30,000 frequented Bethlehem in the early 2000s, and a city official used to call each year asking how to disperse the birds, Peter Saenger, the society’s ...

That effort has been ongoing for 20 years. Any community building a strategy to disperse a large winter crow roost from a downtown area needs to be in it for the long haul. “A lot of it comes ...

PORTLAND, Ore. (KOIN) — Portland’s crows are in the waning weeks of their winter roost. As spring approaches, the thousands of birds that flock to downtown each year will slowly start to ...