 Common starlings introduced to areas such as Australia or North America , where other members of the genus are absent , may affect native species through competition for nest holes . In North America , chickadees , nuthatches , woodpeckers , purple martins and other swallows may be affected . In Australia , competitors for nesting sites include the crimson and eastern rosellas . For its role in the decline of local native species and the damages to agriculture , the common starling has been included in the IUCN List of the world 's 100 worst invasive species . 
 Common starlings introduced to areas such as Australia or North America , where other members of the genus <a href='drop_aux' title='1'><mark>are</mark></a>absent , may affect native species through competition for nest holes . In North America , chickadees , nuthatches , woodpeckers , purple martins and other swallows may be affected . In Australia , competitors for nesting sites include the crimson and eastern rosellas . For its role in the decline of local native species and the damages to agriculture , the common starling <a href='been_done' title='2'><mark>has</mark></a> been included in the IUCN List of the world <a href='null_genetive' title='3'><mark>'s</mark></a>100 worst invasive species . 
Common starlings introduced to areas such as Australia or North America , where other members of da genus absent , may affect native species through competition for nest holes . In North America , chickadees , nuthatches , woodpeckers , purple martins and other swallows may be affected . In Australia , competitors for nesting sites include tdacrimson and eastern rosellas . For its role in thdaecline of local native species and thedamages to agriculture , the damon starling done been included in the Ida List of the woda  100 worst invasive species .