Eggs of the Red Junglefowl

on 6th March 2011

The image on the left shows four Red Junglefowl eggs together with a larger chicken egg at the top and a hybrid (Red Junglefowl x domestic chicken) egg below for comparison. The colour of the hybrid egg is between that of the chicken egg (top egg) and the juglefowl’s. The hybrid egg was not fertilised (at least field ornithologist Wang Luan Keng could not see the embryo) and had a thicker wall than the white eggs. The dimension of the hybrid egg is 47.5 x 35.0 mm. On the other hand, the junglefowl eggs were all fertilised and their embryos were very small, although two were slightly larger.

The creamy white eggs of the junglefowl are glossy and the mean length x breadth = 45.1 x 33.9 mm (43.4 x 33.5; 45.1 x 33.9; 44.9 x 32.7; 46.6 x 35.0 and 45.4 x 34.6).

The five junglefowl eggs came from a single clutch, laid on a scrape of a nest on the ground overgrown with tall grass. Apparently the incubating bird flew off suddenly when disturbed, thus exposing the location of the nest.

The eggs are now with the Raffles Museum of Biodiversity Research, National University of Singapore.

Tan Teo Seng, Wang Luan Keng & YC Wee
March 2011

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.

Other posts by YC Wee

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