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Great Egret – breeding plumage

on 3rd August 2017

“A sizable proportion of the Great Egrets (Ardea alba modesta) were in some degree of breeding plumage. The composite in the image below shows the beak and loral skin changes moving from non-breeding to breeding (upwards).

EgretGR [AmarSingh] 1

“1. Beak from yellow-orange with the tip black to fully black.
“2. Loral skin from olive-yellow to cobalt blue.
“3. Legs from black to pink.

EgretGR [AmarSingh] 2b

“The image above compares a bird in good breeding plumage (in flight) with pink legs with a bird in non-breeding plumage with black legs (below).

EgretGR [AmarSingh] 2

“The image below shows a bird with pink legs with near complete loral skin and beak changes but minimal breeding plumes.

EgretGR [AmarSingh] 3

“There is however much variation and different ‘styles’ of development of breeding plumage; meaning that there does to seem to be a fixed direction in which plumage or bare parts changes happen. I saw birds with well developed breeding plumes with limited bare part colour changes or breeding plumes that pre-dated bare part changes.

EgretGR [AmarSingh] 4

“The above shows is of a bird with well-developed breeding plumes but only just developing a black beak and limited loral skin changes.”

Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
27th March 2017

Location: Kota Kinabalu, Sabah, Borneo, Malaysia
Habitat: Coastal region

If you like this post please tap on the Like button at the left bottom of page. Any views and opinions expressed in this article are solely those of the authors/contributors, and are not endorsed by the Lee Kong Chian Natural History Museum (LKCNHM, NUS) or its affiliated institutions. Readers are encouraged to use their discretion before making any decisions or judgements based on the information presented.

YC Wee

Dr Wee played a significant role as a green advocate in Singapore through his extensive involvement in various organizations and committees: as Secretary and Chairman for the Malayan Nature Society (Singapore Branch), and with the Nature Society (Singapore) as founding President (1978-1995). He has also served in the Nature Reserve Board (1987-1989), Nature Reserves Committee (1990-1996), National Council on the Environment/Singapore Environment Council (1992-1996), Work-Group on Nature Conservation (1992) and Inter-Varsity Council on the Environment (1995-1997). He is Patron of the Singapore Gardening Society and was appointed Honorary Museum Associate of the Lee Kong Chian Natural History Museum (LKCNHM) in 2012. In 2005, Dr Wee started the Bird Ecology Study Group. With more than 6,000 entries, the website has become a valuable resource consulted by students, birdwatchers and researchers locally and internationally. The views and opinions expressed in this article are his own, and do not represent those of LKCNHM, the National University of Singapore or its affiliated institutions.

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