| persistence of host defence behaviour in the absence of avian brood parasitism. | the fate of host defensive behaviour in the absence of selection from brood parasitism is critical to long-term host-parasite coevolution. we investigated whether new world bohemian waxwings bombycilla garrulus that are allopatric from brown-headed cowbird molothrus ater and common cuckoo cuculus canorus parasitism have retained egg rejection behaviour. we found that egg rejection was expressed by 100 per cent of bohemian waxwings. our phylogeny revealed that bohemian and japanese waxwings bomby ... | 2011 | 21493623 |