Andrew Del-Colle

On a May morning in 2005, then 20-year-old Andrew Del-Colle and his mom were birding in New Jersey, taking advantage of the huge numbers of migratory birds that funnel through the state, resting and refueling on coasts, wetlands, and woodlands. Suddenly, a van screeched to a halt in front of them, four men armed with binoculars jumped out, listened and looked for all of 30 seconds, nodded to each other, then hopped back into the vehicle and sped off. Those wackadoos were taking part in the World…

Migration isn’t for everyone. For birds that skip the trip south each fall, staying warm and energized is key to surviving freezing temperatures and snowy weather. Fortunately, thanks to evolution, birds have developed numerous adaptations and strategies to persevere amid the harsh conditions. Here’s a look at some of the wintertime tactics you might observe out your window or birding in the field. Donning Layers Bird feathers are remarkable for many reasons, but their ability to repel water…