Crows may be intelligent because, like us and other smart species, they are very social. The groups of crows in your backyard are extended families who share food and look out for each other. Some young crows help their parents care for younger siblings before breeding themselves. Crows work...

White-tailed deer, North America’s most abundant larger herbivore, number an estimated 30 to 35 million in the United States, found in every state but Alaska, California, Hawai'i, Nevada and Utah. With hunting restrictions, their population has rebounded to where it was before Europeans arrived...

There are many different kinds of sparrows in North America. But, the house sparrow—the little brown bird we see hopping boldly on city streets—is the most widespread and most often in conflict with people. In fact, house sparrows are one of the most widespread animals on this planet. Likely this is...

From a pigeon’s perspective, city living can’t be beat. Food and water are readily available. Predators are rare. Plus, there’s plenty of free housing. Pigeons find our window ledges, rooftops, bridges, and warehouses to be ideal substitutes for the natural ledges in cliff sides that they have...

European starlings are widespread across North America. They eat a wide variety of foods and are willing to use a wide variety of places to nest and roost. This flexible nature helps them thrive in cities and suburbs as well as on farms. They are one of only a few birds who live in otherwise barren...

The house next door sits vacant, placed on the market after the last renter moved out. A succession of owners has knocked down walls, replaced carpeting and installed standard-issue appliances. Edging the exterior are shrubs from conventional landscaping palettes, including invasive species that...

By some human standards, my pond is a hot mess. Underneath and around the water lilies are fallen leaves, branches and other debris of decomposing plants. Along the edges, sea oats, sedges and swamp sunflowers hug the rocks. But if humans are picky in their desire for orderliness, frogs are just as...

Sometimes my most significant revelations are the annoying, kick-me-in-the-pants ones that follow a period of contented denial. One of those seismic shifts in thought came last year at a dinner party, when a man nearly half my age honed in on a flaw in logic I’d subconsciously buried. A plant...