USGS Western Ecological Research Center
The data for this migration is updated daily to show the most recent locations of birds. Each bird is represented by a different colored dot and line. Each dot represents a location for a particular bird and lines connect successive locations. The numbers on the dots refer to the accuracy of the locations (see map legend). You can zoom in on any part of the image in the map to see the quality and date of each location. Click on a point location for information on the identification of the bird, time since the previous location, and distance moved from the previous location. Please note that these data have yet to be fully processed and analyzed. This means that many locations and track speeds will be somewhat different in the final analysis. The data was created using the Douglas Argos-Filter Algorithm v7.04k3 and then passed to google maps.
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