After several weeks of intensive nest searching and observation, Bird Conservancy of the Rockies has confirmed that Baird’s Sparrows are actively breeding at Soapstone Prairie Natural Area—the first time the species has been documented reproducing in the State of Colorado. This remarkable discovery marks an exciting milestone in an already-eventful 2018 summer field season.
The grasslands of the Chihuahuan desert provide important overwintering habitat for over 90% of the migratory grassland species in western North America. Recently, our team joined partners and private landowners on a scenic tour through northern Mexico to visit some of Sustainable Grazing Network ranches that are working to conserve and restore grassland habitat for the benefit of people and birds.
2017 marks eleven consecutive years of data collection at Soapstone Prairie Natural Area in Northern Colorado. This beautiful and ecologically important landscape is home to a diverse array of plants and animals—including over twenty species of grassland birds—that are uniquely adapted to life where the mountains meet the plains.
Mixed-grass prairie in the Northern Great Plains represents critical habitat for wildlife of all kinds, including our specialty at Bird Conservancy of the Rockies – birds! Read on to learn more about our full life cycle monitoring on the breeding grounds and how technology is playing a role in helping us conserve birds and their habitats.
Bird Conservancy is finishing up another winter of grassland bird monitoring in Mexico, using radio-telemetry to study survival rates of Baird’s and Grasshopper Sparrows. We follow them to get an inside view into their lives, and sometimes feel a bit like sparrow paparazzi!
Biologists studying overwinter survival rates of sparrows in the Chihuahuan Desert grasslands of northern Mexico are turning their attention to Loggerhead Shrikes. Taking advantage of shrub encroachment and the favorable habitat it provides for them, shrikes have become an apex predator of birds and many other animals on the landscape.
Rocky Mountain Bird Observatory biologists are back in Colorado after a fruitful winter studying grassland birds on their wintering grounds in northern Mexico. Before digging too deep into the data, biologist Erin Strasser offers a preliminary look at what they learned during season three of this study.
Spring migration is under way. Just as the birds return north, so do the RMBO scientists who study them on their wintering grounds. Back home in Colorado, biologist Erin Strasser offers preliminary results from a second season studying winter survival and habitat use of Baird’s and Grasshopper Sparrows in the Chihuahuan Desert grasslands.
The Chihuahuan Desert grasslands of northern Mexico and the southwestern United States are the principal wintering grounds for 90% of grassland bird species breeding in the western Great Plains of North America. Species such as Baird’s Sparrows, Chestnut-collared Longspurs and Sprague’s Pipits, which rely on this region during the winter, have declined by upwards of 80% since the 1960s. Results from Rocky Mountain Bird Observatory and cooperators’ research, published in February in the journal Biological Conservation, shed light as to why these birds are declining and emphasize that unless immediate action is taken, forecasts are dire.