GRC Blog

Welcome to the GRC Recorders pages. This blog provides details on all the relevant news of Glamorgan’s scarcer birds, plus all BBRC & WRP decisions that affect us locally. It will also be used to document the status and occurrence of these scarcer species and we welcome contributions from anyone with photographs, artwork or documentation of rarities past, present and future. The GRC also welcomes all seawatching news from around Glamorgan and news of passage migrants in spring & autumn, uncommon birds in our area and unusual behaviour.

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The Glamorgan Rarities Committee, in conjunction with the Glamorgan Bird Club & Gower Wildlife , have agreed to co-operate with the Welsh Ornithological Society in the sharing of bird records & photographs in the interest of keeping accurate records and to promote birdwatching in North, Mid & South Wales.

Tuesday, 24 March 2015

Cardiff Bay Bonaparte's Gull

Attached some better resolution pictures to add to the montage from today.

Also attached is a photo I took of one of the birds last March, it appears to have a smudge of black on the right P9 very similar to that in Mark's photos from today. Would love to know if these marks are genetic and there like a fingerprint each year or whether they can vary from year to year.

There are a few photos of previous birds available on Iris unfortunately as the images are only 640 pixels it's a bit difficult to get much detail on them. To me the photos of the 2009 and 2012 birds look remarkably similar to the bird Andy and I photographed this year and those of the 2010 like the bird in Mark's photos and mine and Jim Almond's from last March.

Interesting stuff, going to have to spend a bit of time down there and see if I can get some more photos!


and the bird from last March:


1 comment:

Mark Hipkin said...

Great stuff Peter much appreciated. Jeff Slocombe sent me some interesting images of Peter Lansdown's Ogmore Bonaparte's Gull from Jan 2013, which seems to show that only one of it's wings has a distinctive P9 dark mark.