|To:||'COG List' <>|
|Subject:||YFHE eat your heart out|
|From:||Susanne Gardiner <>|
|Date:||Tue, 16 May 2017 23:29:24 +0000|
A couple of years ago on a backyard bird count day someone reported a Brolga in the middle of Capital Hill in Civic.
I guess it was thrown out during the verification process.
From: Philip Veerman <>
To: 'COG List' <>
Sent: Monday, 15 May 2017, 15:59
Subject: RE: [canberrabirds] YFHE eat your heart out
In one of the early years of the GBS someone put in an obs of 10600 YFHE. Clearly did not understand the “at any one time” rule. It did not get into the GBS database as such. Years later, I think I put it in as 500. Even that is very high by GBS rules. Purely arbitrary figure of course. Both ideas of counts can be sensible or limited use, depending on whether you know the method.
I was looked at the Global Big Day results (close to 6,000 species recorded) by big flock view and was astonished to see a record of 12,000 Blue Jays. Looking at the checklist the observer reported counted and estimated as 1,000 birds every 20 minutes for 4 hours at a site on the Southern (US) shore of Lake Erie. The Sibley Field Guide comments that they migrate in large flocks.
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