Years ago we used to keep and breed some exotic finches; Zebras, Cutthroats, Common Waxbills. Don't think we ever had an escape but we did put plastic bands on each to track for breeding/parentage/etc. I know that there are marking requirements for captive waterfowl. Perhaps the same should be done for any captive birds (other than probably chickens/turkeys). A simple plastic ring at the minimum. Might help in situations like this.
Hal Michael
Science Outreach Director, Sustainable Fisheries Foundation
Olympia WA
360-459-4005
360-791-7702 (C)
ucd880 at comcast.net
>
On October 29, 2019 at 5:12 AM Matt Bartels <mattxyz at earthlink.net> wrote:
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Or , for that matter, whether it is more likely it was purchased by a bird fancier and escaped -; here's a Vancouver WA site with them for sale for $56.99 - https://thefinchfarm.com/eurasian-tree-sparrow/ Makes a great gift for the holidays!
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Matt Bartels
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Seattle, WA
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> > On Oct 29, 2019, at 5:09 AM, Matt Bartels < mattxyz at earthlink.net mailto:mattxyz at earthlink.net > wrote:
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> Hi hi -
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> I'll chime in on this one :
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> The WBRC follows the ABA in its determination of 'countable' birds -; So, yes, by ABA rules, 'ship assisted' alone doesn't make a bird uncountable.
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> Here's the section from the ABA listing rules [ http://listing.aba.org/aba-recording-rules/ ]
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> Rule 3 part a:
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> (i) An otherwise wild bird that voluntarily uses or is attracted to a feeder, nest box, audio playback, ship at sea, or other nonnatural device, without being captured, is still considered wild. Physical contact between an observer and a bird does not automatically preclude a bird from being counted, as there are situations where wild birds have learned to eat from outstretched hands or have used people as temporary perches.
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> However, the question is whether it is more likely that a bird alighted on a ship and stayed there unassisted for a journey -; for example, the Brown Booby that rode into Edmonds on a sailboat was free to go at any time, so it was countable.But when a House Swift was found dead in BC in 2017, it was ultimately judged more likely that it had been trapped in a container for the cross-Pacific journey than that it had freely crossed on its own.
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> With Eurasian Tree Sparrow, I imagine it will be worth a discussion of whether a bird like that [a] is more likely to have wandered west from its core range in MO or [b] if it came from Asia if it was more likely to have freely sat on a ship for the journey or perhaps been stuck inside a container, like House Sparrows in a big WalMart.
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> It will be worth a discussion, for sure!
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> Matt Bartels
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> Secretary, WBRC
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> Seattle, WA
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> > > > Begin forwarded message:
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> >
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> > From: John Puschock <g_g_allin at hotmail.com mailto:g_g_allin at hotmail.com >
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> > Subject: Re: [Tweeters] Eurasian Tree Sparrow Origin
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> > Date: October 28, 2019 at 8:47:25 PM PDT
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> > To: Tweeters Tweeters <tweeters at u.washington.edu mailto:tweeters at u.washington.edu >
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> >
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> > Does the WBRC have an explicit "no ship-assistance" rule or policy? By ABA listing standards, ship-assisted birds are countable (or at least the last time I checked that was true).
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> >
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> > John Puschock
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> > Seattle
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> > Tweeters at u.washington.edu mailto:Tweeters at u.washington.edu
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> > http://mailman11.u.washington.edu/mailman/listinfo/tweeters
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> >
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> > > >
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> >
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