Tracking birds can be tricky — even with GPS technology. Around 70% of bird species are just too small to carry a GPS battery. But recently, Australian scientists developed GPS trackers that looked like little backpacks, weighed less than a gram, could charge wirelessly and could be…

Springtime in the Anza-Borrego Desert State Park in southeastern California. Cacti and wildflowers glisten with raindrops, and birds begin to sing. A House Finch, a Bewick's Wren, a Cactus Wren, a Mourning Dove, and this Costa's Hummingbird all add their sounds. The soundscapes featured in…

Hoping to attract hummingbirds to your yard or balcony? One way is to grow native plants. Native plants provide cover, and they offer nectar in spring and summer. They also attract insects, the most important part of a hummingbird’s diet. Just add a source of water for drinking and bathing…

An estimated 1.5 billion Red-billed Quelea live in Africa today, making them the most abundant of all wild birds. The sparrow-sized Red-billed Quelea flock together in groups so large, from a distance they appear to be clouds of smoke. Red-billed Quelea are in the weaver family and create…

Male Lance-tailed Manakins pair up to perform choreographed courtship displays for females. Known as cooperative courtship, it involves one alpha male and one beta male, who are not closely related, working together to attract the female. While it might not seem like a good deal for the…

House Finches are evolving rapidly and visibly. In 1941, some captive House Finches from California escaped near NYC. They spread rapidly and are now found across most of the US. We know the finches have evolved, because those that survive differ from their parents. Size is one example…

When a Carolina Wren like this one sings, something remarkable happens. These birds can sing so loudly that you almost have to shout to be heard over their songs! How can a bird like a Carolina Wren – at just 5½ inches long and weighing only as much as four nickels – produce so much sound…

Great Blue Herons nest in colonies, in adjoining trees or with several nests in one tree. But by autumn, the adults and gangly young have left the nests to take up solitary lives, a pattern that is the reverse of many other species. After all the "togetherness" of the nesting colonies, the…

California's Salton Sea is hot and smelly - and it's also a Mecca for thousands of wintering birds. This inland sea formed when the Colorado River breached floodgates in 1905, forming a lake 45 miles long. The lake has diminished in size and greatly increased in salt concentration, but a…

Common Poorwills don’t sing much when the mercury drops. But they can do something else that is remarkable. As the winter cold deepens, these petite members of the nightjar family can enter a hibernation-like state — and stay like that for hours — or even weeks! Scientists call it torpor…