Someone in Maine gunned down the last wild passenger pigeon

Though a captured bird remained alive in a zoo for another decade, nobody ever saw another wild passenger pigeon after a hunter shot one out of the sky in Bar Harbor in 1904.

Backyard nature: A frog-eat-frog world

Blue frogs. Green frogs. Little, big and mean frogs. I had to shelter at home and our pond has become my means for mental stimulation.

VIDEO: What it means to be as busy as a bee

Sun Journal photographer Russ Dillingham has the buzz from Tuesday morning.

It’s a boom year for acorns, but the reason is a tough nut to crack

'Mast years,' when oaks of a certain type drop more seed than usual, occur every 2 to 5 years, and scientists can't explain why.

Where art and science meet: North Yarmouth artist renders wildlife

Fresh off a residency at the Arctic National Wildlife Refuge, Michael Boardman wants to educate the public through his art about threats to breeding birds.

Birding: For over 100 years, ordinary people have contributed to the field of ornithology

The web-based iNaturalist, with its social networking component, continues that tradition, in a 21st-century way.

PHOTOS: Sweet nature in Livermore Falls

Hummingbird moths and bumble bees feast on nectar, pollen, respectively.

Gail A. Howe

Wasps in a tangle

Christopher J. Chappell