Reproductive success of cinnamon bittern, Ixobrychus cinnamomeus Gmelin, 1789 at Paleik in, Sintkaing Township, Myanmar
Nyunt Lwin, Thandar Saw, Sandar Myint and Htay Htay Win
Reproductive successes ofCinnamon Bittern were studied at Paleik In, from June 2016 to September 2016. A total of 20 nests and 90 eggs were observed. Among these, 55 eggs survived until hatching. The mean length, width and weight of eggs were 31.26±1.21 mm, 24.03±0.99 mm and 19.53±3.30 respectively. The clutch size was 2-6 eggs. The incubation period was 22 - 23 days and both parents incubated the eggs. During the study period, 70 % of the nests were recorded as successful, 5 % was lost due to predator, 10 % was lost by flooding, 5 % was abandoned and 10 % was lost by unknown reasons. This study gives the information on habitat selection and reproductive effort of Ixobrychus cinnamomeus.