In 2005, there were an estimated 1,700 of the birds in Madrid. As the population grows, so do the problems. The birds, considered an invasive species in Spain, are noisy, messy, and are certainly ...

In 2005, there were an estimated 1,700 of the birds in Madrid. As the population grows, so do the problems. The birds, considered an invasive species in Spain, are noisy, messy, and are certainly ...