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The GGRO Banding and Telemetry Programs:
The GGRO Banding Program, founded by Judd Howell and Williston Shor in
1983, has banded nearly 16,000 raptors through 2000. A small numbered leg
band allows the bird's movements to be tracked if a found hawk is reported
the the federal Bird Banding Lab.
To date, we have received more than 500 band recoveries, which show
raptor migration paths along the Pacific Coast. Though patterns are still
unfolding, some hawks banded at the Golden Gate have traveled as far north
as the Washington-British Columbia border, and as far east as Idaho. Others
have flown south to Baja California-Mexico border. A few Golden Gate raptors
may fly as far as Argentina to reap the benefits of the southern hemisphere
summer.
In 1990, GGRO volunteers began using radiotelemetry techniques to
learn daily patterns and behaviors of migrating raptors. By fitting a hawk
with a tiny transmitter on a tail feather, telemetrists can follow a hawk
for up to two months.
Through 2000, the GGRO Telemetry Program has radiotracked 33 hawks,
documenting flight paths and behaviors that we never could have imagined
ten years earlier, and witnessing the real lives of hawks, their daily habits
and habitats.
If you want to learn more about being a GGRO
volunteer, visit our Volunteers link or contact
the GGRO.
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If you want to learn more about being a GGRO volunteer, visit our Volunteers link or contact the GGRO.
Contact the GGRO:
Mail:
Golden Gate Raptor Observatory
Building 201, Fort Mason
San Francisco, CA 94123
Phone:
(415) 331-0730
E-mail address:
ggro@parksconservancy.org
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