 More than twenty species of hawk , owl and falcon are known to occasionally predate feral starlings in North America , though the most regular predators of adults are likely to be urban @-@ living peregrine falcons or <unk> ( Falco <unk> ) . Common <unk> ( <unk> <unk> ) sometimes evict eggs , nestlings and adult common starlings from their nests , and the lesser <unk> ( <unk> minor ) , a brood parasite , uses the common starling as a host . <unk> are more commonly the culprits rather than victims of nest <unk> however , especially towards other starlings and woodpeckers . Nests can be raided by animals capable of climbing to them , such as stoats ( <unk> <unk> ) , raccoons ( Procyon <unk> ) and squirrels ( <unk> spp . ) , and cats may catch the <unk> . 
