Friday, October 30, 2009

Dusky Canada Geese follow-up

certificate of appreciationIt only has been two days since I saw and reported the red neck collar numbers of four Dusky Canada Geese I recorded at Jackson Bottom Wetlands in Hillsboro, Oregon. I received certificates of appreciation for reporting two of the geese. The certificate for 7JP is reproduced here.

Bird 7JP is a female, banded 5 August 2003 by Dr. Dirk Derksen and was at least one year old when banded. The banding location was 5 miles west of Alaganic, Alaska (see map).

The other goose, 84C is a male, banded 18 July 2005 and was at least one year old when banded. It was banded not too far from the other bird, 11 miles south of Cordova, Alaska, by Thomas Rothe.

Reporting neck collar numbers helps scientists figure out where these birds go and their survival rates. Notice that goose 7JP was banded 6 years ago and is at least 7 years old.

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  1. That's so cool. I love that kind of stuff! Are they just as interested in the bands on Canada Geese? I see ankle bands on many Canada Geese every year in the Boise area parks.

  2. Thanks for the note, Robert. The neck bands are easy to see. The birds I saw were probably 200 yards away. But you are right, the plastic neck bands are correlated to the metal F&WS leg bands. They really track the birds officially by the leg bands. Use the same web site to report leg bands as neck bands: