Before moving on from the last of the winter birding I wanted to do a post on colour-ringed Black-faced Spoonbills at San Tin. One of the conservation success stories of the East Asian Australian Flyway,
Black-faced Spoonbill numbers have climbed over 5,000 individuals for the first time in living memory. Hong Kong hosts a little over 6% of the wintering population and among these are birds ringed in various locations - both Hong Kong and elsewhere on the flyway. There is a register showing where each bird is ringed on the
Black-faced Spoonbill Conservation Network website
Among the birds I saw in March were birds from Korea, Russia and Hong Kong. It's fun to try to figure out which bird you're looking at, especially when you don't the full combination of numbered and colour-ringed birds.
Pic 1 - The grey-ringed Russian bird at the back was ringed at a breeding colony on Furugelm Island which is the southernmost point of Far Eastern Russia, just off the border between Russia and North Korea sometime between 2006 and 20014. Unfortunately the number was not visible, so it not possible to be more precise. But it interests me for being from the northernmost known breeding colony.
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also Pic 1- The bird in breeding plumage front and left is one of five individuals ringed as chicks ( H 02, H 25, H 26, H 27, H 28) with the H numbered ring on the left leg and red over blue on the right leg. Unfortunately I could not see the lowest colour ring on the right leg. All of these birds were ringed in 2015 in Korea on one of three small islets on the west coast around the Demilitarised Zone. The website provides further interesting insights. H 02 was radio tracked for its first year, H26 was never reported subsequent to being ringed as a chick, H27, which has not been seen since 2016 (although this was in Hong Kong) and H 28 were siblings. So its most likely to be H 02, H 25 or H 28.
H02 was recorded beforehand after this date in Tai wan and is highly unlikely to have visited hong Kong in the interim
H 25 has no previous records from Hong Kong and not been seen closer than Zhejiang.
H 28 was reported at Tiaozini (part of the Yanchang wetlands) in Jiangsu on 1st April, so it would have had to travel 1300km in ten days. It has also previously been reported in Hong Kong in late March 2018, so it has some past form.
On the basis of all this info my money is on H28.
Pix 2 & 3 - A 43 with white yellow and green colour rings was ringed in Hong Kong. The earliest records are from November 2019.
See link here
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I'll post more of these here from time to time.
Cheers
Mike