 Intraspecific brood parasites are common in common starling nests . Female " floaters " ( unpaired females during the breeding season ) present in colonies often lay eggs in another pair 's nest . Fledglings have also been reported to invade their own or neighbouring nests and evict a new brood . Common starling nests have a 48 % to 79 % rate of successful fledging , although only 20 % of nestlings survive to breeding age ; the adult survival rate is closer to 60 % . The average life span is about 2 – 3 years , with a longevity record of 22 yr 11 m . 
 Intraspecific brood parasites <a href='drop_aux' title='1'><mark>are</mark></a>common in common starling nests . Female " floaters " ( unpaired females during the breeding season ) present in colonies often <a href='uninflect' title='2'><mark>lay</mark></a> eggs in another pair <a href='null_genetive' title='3'><mark>'s</mark></a>nest . Fledglings <a href='been_done' title='4'><mark>have</mark></a> also been reported to invade their own or neighbouring nests and evict a new brood . Common starling nests <a href='got' title='5'><mark>have</mark></a> a 48 % to 79 % rate of successful fledging , although only 20 % of nestlings survive to breeding age ; the adult survival rate is closer to 60 % . The average life span <a href='drop_aux' title='6'><mark>is</mark></a>about 2 – 3 years , with a longevity record of 22 yr 11 m . 
Intraspecific brood parasites common in common starling nests . Female " floaters " ( unpaired females during the breeding season ) present in colonies often lie eggs in another pair  nest . Fledglings done also been reported to invade their own or neighbouring nests and evict a new brood . Common starling nests got a 48 % to 79 % rate of successful fledging , although only 20 % of nestlings survive to breeding age ; da adult survival rate is closer to 60 % . Tdaaverage life span bou 2 – 3 yrs , with a longevity record of 22 yr 11 m .