Rainbow Lorikeet - Dimorphism

Dimorphism

Unlike the Eclectus Parrot, Rainbow Lorikeets do not have any immediately discernible dimorphic traits.

Upon closer observation of both their colouring, size and behaviour however, it is possible to determine the sex of a Rainbow Lorikeet.

This process is made infinitely easier when one observes them in pairs, however the general rules are that a male will have a greater concentration of dark orange on his breast as opposed to the more pronounced bleeding of yellow into orange of a female.

The male will also be more robust across the breast and traditionally have a thicker, more square head whilst the female sports a more rounded visage.

When feeding in a flock during breeding season, the male will often puff up and produce a threatening display, hopping around his partner as she feeds and ensuring that competitors for food do not interrupt her ingestion of food.

Rainbow Lorikeets are monogamous and pair for life.

To the casual observer, there is no discernable difference in terms of the sexes, however with continual observation of the species whilst in flock behaviour, the dimorphism becomes apparent.