From birdsong to bug booms, these are sure signs that spring is here.

BIRDS
Careful study of surviving documents and specimens, as well as a little science, have revealed a bit about the dodo.
The answer involves World War I soldiers and a cute bird.
This island is struggling to manage its massive stray cat population.
Along with jack o’ lanterns, skeletons, and ghosts, spider webs are a classic part of creepy Halloween décor. But the spooky faux webs can be more dangerous than they appear.
You’ll never look at these creatures the same way again.
Think your commute is bad? At least you don’t have to walk or swim from one end of the Earth to the other.
Early birds are starting to sing even earlier because of artificial light pollution—but it’s not clear if they’re actually losing sleep.
EDDMapS’s database has more than 9 million records of invasive species. See which ones hit close to home.
Ammonia from the birds’ guano can mix with other gases and form clouds, potentially cooling Earth’s surface and preserving Antarctic ice, a new study suggests.
Greater sage-grouse are at risk near Jackson Hole Airport—but handmade decoys are guiding them to safer ground.
A territorial woodpecker has broken dozens of car mirrors in a bizarre springtime rampage.
These crested songbirds add a welcome dash of color to yards throughout much of the United States. Let’s get a little better acquainted with our rosy, non-migratory neighbors.
Any early warning sign can be a canary in a coal mine. But the original meaning was more specific.
Can a Boston dog bahk?
Vlasic has used a stork to market its pickles for decades. But how did a bird known for bringing babies suddenly start selling pickles?