Recently scientists from the Zoological Society of London and Yale University assessed the world’s 9,993 bird species according to their evolutionary distinctiveness and global extinction risk. At number three on the list is the Critically Endangered California condor (Gymnogyps cali­fornianus) – weighing as much as 25 pounds, standing over four foot tall, with a wingspan of almost 10 feet, it is the largest land bird in North America.