Αποτελέσματα Αναζήτησης
The migration path narrows as the birds move south and north, creating phenomenal hawk-watching opportunities at known migratory points in Texas, Mexico, and Central America.
- Sightings Map
A classic species of the open country of the Great Plains...
- ID Info
A classic species of the open country of the Great Plains...
- Sounds
The piercing call lasts 2–3 seconds, fading at the end. The...
- Life History
Swainson’s Hawk numbers increased steadily, over 1% per...
- Sightings Map
This slim and graceful hawk is a common sight over grasslands of the Great Plains and the west, but only in summer: every autumn, most. ... Species Migration Maps show the movements of a single species as it travels throughout the hemisphere each year.
USGS scientists characterized the annual patterns of long-distance movement and delineated migration routes of 46 hawks tagged in separate nesting areas throughout their breeding range. Satellite telemetry tracking the hawks showed they followed three main routes south, converged along the east coast of central Mexico, and then followed a ...
6 Μαΐ 2011 · In addition the post includes a neat map showing the Swainson's Hawks migration route from North America to far South in Argentina. Swainson's hawk migration route. Data from USGS, Snake River Field Station, from 30 birds fitted with satellite tracking devices.
MIGRATION. Swainsonʼs hawks breed in North America, from Canada to northern Mexico. Following the spring and summer breeding season, Swainsonʼs hawks migrate south to their winter breeding grounds. While most Swainsonʼs hawks migrate all the way to the Pampas region of Argentina, the Central Valley population is unique!
Migration & Range Maps. Long-distance migrant, with most going to southern South America for winter. Often migrates in large flocks. May travel for several days without feeding. Mostly western, but every fall a handful of individuals show up on Atlantic Coast.
Swainson's hawk migration route. 30 birds were fitted with satellite tracking devices to produce this map. Small populations winter in southeastern Florida and along the Texas coast, probably having failed to find the way south around the Gulf of Mexico.
