The Chihuahuan Desert population of Northern Aplomado Falcon shrunk dramatically a century ago and was lost from the southwestern U.S. A tiny population survived in Mexico, but its continued survival is tenuous due to habitat loss and other factors. A tri-national partnership is monitoring this population’s breeding success and conducting a demographic study that includes satellite telemetry of juvenile falcons. What we are learning is guiding conservation and helping gain support from private landowners on the ground. The recent appearance of a young male falcon in New Mexico fosters hope that the Northern Aplomado Falcon might even be able to someday recolonize the Southwestern U.S.
Recent extensive bark beetle outbreaks have raised concerns about the health of western conifer forests and their capacity to support wildlife species. These tiny bugs bring big changes, transforming forests and re-shaping landscape ecology in extreme ways and on a grand scale. We surveyed birds in Colorado, gathering data to compare unimpacted forests with those following a beetle outbreak. What we found may surprise you!
Little is known about grassland birds during migration. Automated radio telemetry through the Motus Wildlife Tracking System can help us understand bird movement during this part of their life cycle. Bird Conservancy of the Rockies is implementing a three-phase, multiyear project to expand the Motus network into the Great Plains and Chihuahuan Desert, installing receiving stations along avian flyways to capture vital data and fill knowledge gaps.
Grassland bird populations are declining and the majority of species are understudied on their wintering grounds. In the winter of 2020, we implemented a regional monitoring program in the Chihuahuan Desert of Texas to establish baseline population estimates of grassland birds. We surveyed on a number of expansive cattle ranches, each exhibiting fascinating ecological and management histories. Through the implementation of this program, we can share that collaboration between ranching operations and grassland bird conservation is mutually beneficial.
The Sprague’s Pipit is a charismatic songbird of North American grasslands. If you’ve ever wandered the Northern Great Plains in summer, you’ve probably heard their sweet song, and maybe even seen their high-altitude aerial displays which can last for hours. One of many fast-declining grassland bird species, we’re urgently working to learn more about the life cycle of the Sprague’s Pipit so that its song can continue to be enjoyed for generations to come.
The deserts and canyons of the American Southwest are home to an array of unusual and captivating wildlife. Among these amazing animals is a species that’s easy to overlook—but not because it’s ordinary. Quite the opposite! Literally pint-sized and weighing less than a golf ball, if you weren’t looking carefully, you could easily miss the world’s smallest owl.
Since 1970, less than a single lifetime, North America has lost more than one in four of its birds, according to a report in the world’s leading scientific journal. New findings just published in the journal Science confirm staggering losses among birds. Based on nearly 50 years of data, this research for the first time quantifies a long-developing but overlooked ecological crisis.
Black Swifts are thought to forage long distances from their nest sites, but their basic movement ecology is unknown. Knowledge about daily foraging routes and distances will help identify flight patterns, foraging hotspots and habitat relationships—critical to understanding the conservation needs of this enigmatic species.
How many birds can you accurately count in six minutes using sound as well as sight? The ability to correctly recognize birds by ear is a vital skill for our teams, one that takes a lot of effort to master. IMBCR technician Beth Raboin shares how she uses context and associations—and a dash of baseball—as an aid to her auditory memory.