Scope out more than 90 species of birds at Crystal Springs Rhododendron Garden.
Hundreds of raptors congregate on Sauvie Island.
Trillium blooms in Tryon Creek State Natural Area signal spring.
Camas lilies light up Lacamas Lake Park.
Three-mile seasonal loop trail opens at Tualatin River National Wildlife Refuge.
Salamanders are out in force at the Audubon Society Sanctuary in Forest Park.
Fledging peregrine falcons take to the air above Cathedral Park.
Sunsets at Rocky Butte are accompanied by hundreds of orange-winged Lorquin admiral butterflies.
Vaux swifts take roost at Chapman Elementary School.
Fall chinook salmon return to the Sandy River in Oxbow Regional Park.
Clear night skies above Powell Butte offer views of the Leonid meteor shower.
Strawberry trees bear their white flowers (and sweet red fruit) in Hoyt Arboretum.