Cassin's Sparrow
Peucaea cassinii
Peucaea cassinii
In dry grassland country of the Southwest in summer, this plain brown sparrow is often seen flying up from a bush top and then fluttering
...Species Conservation Challenges Maps combine weekly maps of bird distribution and abundance with the footprint of conservation challenges to show where, when, and how extensively birds are exposed to human activities and environmental changes as they migrate throughout the year.
Learn more about this mapSelect a conservation challenge below4
Conservation ChallengesUrban Areas
Residential & Commercial Development
Suburban Areas
Residential & Commercial Development
Communication Towers
Transportation & Service
Light Pollution
Pollution
Cassin's Sparrow
Peucaea cassinii

Species Migration
This map is made possible by the generous contribution of hemispheric weekly distribution data from eBird at the Cornell Lab, and a variety of hemispheric data sources for conservation challenges. Learn more
Data Providers
Conservation Challenges
This map is made possible by the generous contribution of hemispheric weekly distribution data from eBird at the Cornell Lab, and a variety of hemispheric data sources for conservation challenges.
The following partners contributed to the development of this map.Data Sources
How to contribute data to the Migratory Bird Initiative
If you are interested in sharing your data with the Migratory Bird Initiative, contact us at migratorybirds@audubon.org
To request information about the Migratory Bird Initiative
Requests for data should be directed to the contributing data holder or organization. If you’re interested in something else, please contact us at migratorybirds@audubon.org
Map Layers
Species Conservation Challenges
See where birds are exposed to the footprint of human activities and environmental changes throughout their annual migratory journey.