The text in Chinese gives a clue:
Location is Xinhu Elementary [which google maps conveniently places in Taibei on Taiwan]
Comments say 'I often see them'

Together with the list coming through the Taiwan portal for eBird, I'd say someone had an unfortunate location plotting episode

Matt Bartels
Seattle, Wa

-----Original Message-----

>From: Mark Robinson <blobbybirdman at gmail.com>

>Sent: Dec 4, 2018 1:26 PM

>To: Rick Tyler <rhtyler at gmail.com>

>Cc: Tweeters <tweeters at u.washington.edu>

>Subject: Re: [Tweeters] Mega sighting on eBird

>

>I couldn't decide if the sighting was wrong or the location was wrong

>

>On Tue, 4 Dec 2018 at 13:18, Rick Tyler <rhtyler at gmail.com> wrote:

>

>> Taiwan Blue-Magpie in central Seattle? I wonder if a visitor saw a scrub

>> jay?

>>

>> Rick

>>

>> ---------- Forwarded message ---------

>> From: <ebird-alert at cornell.edu>

>> Date: Tue, Dec 4, 2018 at 11:59 AM

>> Subject: [eBird Alert] Year Needs Alert for King County <daily>

>> (...)

>> - Taiwan Blue-Magpie (1 report)

>>

>> (...)

>>

>> Taiwan Blue-Magpie (Urocissa caerulea) (5)

>> - Reported Dec 03, 2018 06:40 by ximentin chuang

>> - 新湖國小, King, Washington

>> - Map:

>> http://maps.google.com/?ie=UTF8&t=p&z=13&q=47.610201,-122.323325&ll=47.610201,-122.323325

>> - Checklist: https://ebird.org/view/checklist/S50411506

>> - Comments: "經常會看到。"

>>

>> (...)

>> _______________________________________________

>> Tweeters mailing list

>> Tweeters at u.washington.edu

>> http://mailman11.u.washington.edu/mailman/listinfo/tweeters

>>