Likewise , in America , the population of bald eagles declined because of POPs causing thinning of eggshells and other reproductive problems .
In Europe , the white - tailed eagle and some species of seals have approached extinction due to poisoning by persistent organic pollutants .
In America , the population of bald eagles declined because of POPs causing thinning of eggshells and other reproductive problems .
In Europe , the white - tailed eagle and some species of seals have approached extinction due to poisoning by persistent organic pollutants .