Blog

Many songbirds are nesting earlier in spring because of warmer temperatures brought about by climate change. But the shift brings another danger that is especially deadly for nestlings: greater exposure to temperature variability in the form of cold snaps and heat waves. A new study from Cornell documents that such extremes result in more nest failures.

Building safe and healthy communities for both birds and people has never been more necessary, but it doesn’t happen by chance. It happens when we join forces to identify a need, pool resources to accomplish a goal, and communicate the successes—and challenges—with the broader community. Read our thoughts on how to scale up your NestWatching to the community level.

Humans use scarecrows to scare away birds, but do birds also use scare tactics to repel predators from their nests? Our latest research suggests that they do, and NestWatchers may have even witnessed it in action. Read on to find out how birds try to frighten away ghouls from the nest.

Once in a while, NestWatchers document something that is seldom seen. That’s what happened when Jo Roberts of western Texas recorded the first known instance of a Scott’s Oriole reusing the same nest for years. Jo reminds us that even one person can make a difference in what is known about a species.

NestWatchers have helped shed light on one of the most-asked questions of our participants: what are the biological consequences of providing extra food to birds? As is usually the case, results vary based on species.

In May 2017, Jason Estep of Ohio witnessed something incredibly rare, or at least, rarely seen. An Eastern Bluebird female consistently sat in the old nest of an American Robin over an eight day period. Although the nest was too high to glimpse the contents, it is thought that she was incubating eggs. But Jason isn’t the only one to find this kind of oddity this year.

What can you do this fall to build better habitat for your nest box inhabitants? Plant native! Native plants are a boon for wildlife, especially birds; they’re a great source of food and shelter, and they provide ample nesting material during the breeding season. Our guest Mhairi McFarlane dives into several different activities you can do right now to help create ideal nesting space for your birds come springtime.

This year we’re asking NestWatchers to accept our challenge to find one nest of a species you’ve never monitored before. For inspiration, we illustrated five beloved backyard birds that nest near people. Download and print the images as a reminder, and read on to learn how to find the nests of these “outside the box” nesters.

A unique new study combines American Kestrel nest records from varied sources in order to analyze trends in nesting phenology. What they found is that for kestrels, especially those in the Northeast, it pays off to be right on time. Delays in starting a nest resulted in fewer offspring and lowered probability of success.