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Post by tmanson on Oct 18, 2008 9:40:17 GMT -8
Hi all: It looks like the consensus, so far, is that Murray's White-morph Gyrfalcon is a falconer's escapee. I know nothing about falconry, but here is a couple of things to think about. The white appendage on the bird's right leg. Assuming it is man-made, looks more like a ring than a band. Could it be a device used to tether the bird? While I was waiting for Murray in the p.m. yesterday, at the brussel sprout field, where Murray found the bird for the second time, I observed the bird hunting. It flew from the ground, which, I understand is what gyrfalcons mostly do, because of the largely perchless environment many of the wild birds come from. It returned to the same location on the ground, after its sortie. Is flying/hunting from the ground a learned behaviour, or are they hard-wired to do so? Cheers, Thor
Thor Manson Hope, B.C.
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Post by Gord on Oct 19, 2008 13:35:58 GMT -8
Thor, I think you might be right. Metal bands used in study are wider to contain contact information and a number so researchers know which bird it was attached to. Coloured bands are for field observations and often long-term studies will use a couple colour/colour combination to identify birds banded in particular years and/or areas. It can give an idea of where the bird was banded without having to recover the metal band that carries more detailed information. I might be wrong.
As to its behaviour, I saw it sitting on the hydro tower and not move much except look nervous and shuffle around a little when a Bald Eagle flew near. Interesting hunting observation. Just the way they do it or just used to returning to an arm?
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