He is right there should be a number band on the bird as well this would
let the Lab know who banded it, its age, sex and the date it was banded.
Call the Banding Lab they should be able to help you out if you give them
the number of the band. If no number is with the color band you may have a
problem. The Lab keeps track of who bands what birds with what colors but
we are asked to put a number on the bird as well.

In Canada we have to obtain a permit to color band any birds that we wish
to work on. This is so that no two people are banding with the same color
for the same species.

Libor

----------
> From: Don Baccus <dhogaza at pacifier.com>
> To: tweeters at u.washington.edu
> Subject: Re: Banding of glaucous-winged gull
> Date: October 5, 1997 6:15 PM
>
> At 02:54 PM 10/5/97 -0700, you wrote:
>
> > It has a green band(s?). Anyone have any idea?
>
> In theory any bird banded here in the US should have an aluminum
> USF&W band on it, in addition to any color markers. Though at
> the Goshutes raptor project we caught a color-banded peregrine
> one year that had no USF&W band. It took the banding lab months
> to figure out who the hell put the band on, which is why they
> want USF&W bands on all birds (it was a team of BLM biologists
> banding nearly-fledged peregrine chicks at Prudhoe Bay, you'd
> think they'd want some chance of finding out where their birds
> went after fledging!)
>
> Anyway, don't know if Canada has strict rules in that regard. If
> not, it would point to the odds being that it was banded by a
> Canadian.
>
> You could call the Banding Lab, 1-800-327-BAND, and see if you can
> get information on who might be color banding these gulls.
>
>
> - Don Baccus, Portland OR <donb at rational.com>
> Nature photos, on-line guides, and other goodies at
> http://donb.photo.net