Mark Olsen

a couple of birds sitting on top of a tree branch

Two mourning doves showing affection on a sunny spring day.

Close-up of vibrant pink blossoms on a tree branch, signaling the onset of spring with their bright, fresh petals.

a small bird sitting on top of a tree branch

An Anna's Hummingbird perched on an Ironwood branch, shaking itself off after pruning.

The sun rises over a saguaro cactus in Saguaro National Park, AZ.

A Scarlet Tanager pauses briefly to eat a small insect while perched in a tree.

a hummingbird flying in the air with a green background

A Broad-billed Hummingbird pauses for a brief moment on a spring afternoon in Tucson, Arizona.

a close up of a cat looking at the camera

A portrait of a curious cat staring into the camera.

Sea smoke rises on a cold winter morning as gulls fly overhead in Boston Harbor.

a group of boats floating on top of a body of water

Boats at Boston Harbor on a cold winter morning as sea smoke rises from the ocean.

a hummingbird flying through a tree filled with green leaves

A Costa’s Hummingbird flying away from a branch in a dogwood tree on a sunny winter day in Arizona.