Brazilian Air force comes to the rescue of penguins

I was fascinated to hear the news about Brazilian Air force coming to the rescue of stranded penguins.
Every year penguins fly towards north from the colder waters near Patagonia in search of food. This year they have traversed distances hitherto unreported. The birds are thought to have made a journey of more than 3,000km. Hundreds of birds have been washed up on the coast of Brazil. This has puzzled the scientists. Penguin migration is closely linked to their need for food, and the altered pattern of journey suggests that something has gone awry with their normal fish supply. There has also been evidence that they are eating fish that are not part of their usual diet. Reasons could be changes in water temperatures and ocean currents or man-made pollution. Scientists are raking their brains to find out the exact cause.
Hundreds of birds were completely exhausted by their long journey. It is here that the air force came to the rescue. They were flown this week in a Hercules plane down to the southern tip of Brazil, where they are being released into the ocean