females' maximum weight is 7.5 kilograms before moulting and they lose weight to below 5 kilograms when protecting chicks in nests;
(females' maximum weight; is; 7.5 kilograms) (they; lose; weight; T:when protecting chicks in nests)
females' maximum weight they
is lose
7.5 kilograms
weight T:when protecting chicks in nests