Long past 1634, ruby-throated hummingbirds are still ‘a curious bird to see’ in May migration

If you think year-round Canada geese are pests, we can blame ourselves for getting them to stay

Cabbage white butterflies eat their greens, though they also eat a great deal of ours

Don’t fear the little bats who devour mosquitoes, but worry for them as a deathly fungus spreads

Red-winged blackbirds dive bomb and shriek, but in protection of their waning population

Everything there is to know about the alewife, fishes that fed and fertilized in early America

Cellophane bees are too busy to seek to sting you, even if you go on a Tufts safari to seek them out

From teeth to tail, opossums are so unusual playing dead is truly the least of it

If you’ve heard that blue jays are smart, it’s true; if you’ve heard that they’re blue, you’re mistaken

Eastern gray squirrels are an urban success story, foraging in peace with other breeds and humans